---
product_id: 358578806
title: "KASTWAVESeat Belt Extender & Seat Belt Tensioner, Metal Tongue, Certified Motors Sleeve Buckle Connector Suitable for Most Cars, Relax Shoulder Neck Give You a Comfortable and Safe Experience"
brand: "kastwave"
price: "12063 Ft"
currency: HUF
in_stock: true
reviews_count: 4
url: https://www.desertcart.hu/products/358578806-kastwaveseat-belt-extender-and-seat-belt-tensioner-metal-tongue-certified
store_origin: HU
region: Hungary
---

# No Tools Needed Universal Fit Safety Certified KASTWAVESeat Belt Extender & Seat Belt Tensioner, Metal Tongue, Certified Motors Sleeve Buckle Connector Suitable for Most Cars, Relax Shoulder Neck Give You a Comfortable and Safe Experience

**Brand:** kastwave
**Price:** 12063 Ft
**Availability:** ✅ In Stock

## Summary

> Buckle Up for Comfort! 🚀

## Quick Answers

- **What is this?** KASTWAVESeat Belt Extender & Seat Belt Tensioner, Metal Tongue, Certified Motors Sleeve Buckle Connector Suitable for Most Cars, Relax Shoulder Neck Give You a Comfortable and Safe Experience by kastwave
- **How much does it cost?** 12063 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/358578806-kastwaveseat-belt-extender-and-seat-belt-tensioner-metal-tongue-certified)

## Best For

- kastwave enthusiasts

## Why This Product

- Trusted kastwave brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Adjustable Design:** Easily customize the seat belt length for maximum comfort.
- • **Durable & Reliable:** Crafted from stainless steel and ABS for long-lasting performance.
- • **Universal Compatibility:** Designed to fit nearly all car seat belts effortlessly.
- • **User-Friendly Installation:** No tools required—just insert and go!
- • **Comfortable & Safe Experience:** Transform your ride with our seat belt extender that prioritizes comfort and safety.

## Overview

The KASTWAVE Seat Belt Extender & Tensioner is a universal solution designed to enhance comfort and safety for all passengers. With a user-friendly installation process, durable materials, and adjustable features, it ensures a secure fit for everyone, from children to service personnel. Safety certified and easy to use, this extender is a must-have for a worry-free driving experience.

## Description

KASTWAVESeat Belt Extender & Seat Belt Tensioner, Metal Tongue, Certified Motors Sleeve Buckle Connector Suitable for Most Cars, Relax Shoulder Neck Give You a Comfortable and Safe Experience

## Features

- 🚗EXTENSIVE SUITABLE: Universal seat belt buckles designed to fit nearly all car seat belts. Plus, our seat belt clips are easy to install and use. No welding, melting or glue and no tools are required.
- 🚗EAST TO USE: It can be used after receiving the goods, without any technical operation, just insert it into the card slot and pull on the car buckle extender. Suitable for obese people, children, pregnant women, firefighters and service personnel.
- 🚗SAFETY ISSUES: With using seat belt strap clips, drivers and passengers can avoid neck injury when emergency braking. Plus, You and your family can adjust the seatbelt length at will and reduce the discomfort caused by the seatbelt.
- 🚗HUMANIZED DESIGN: There is a buckle design on the back of our seatbelt adjuster to control and fasten the tightness of the seat belt freely.
- 🚗DURABLE: Our car buckle extender has passed safety certification and its safety is guaranteed. Made of stainless steel to ensure safe driving. ABS housing is harder than ordinary plastic, durable and not deformed. Stainless steel metal tongue prevents fading and rust.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | KASTWAVE |
| Brand | KASTWAVE |
| Product Dimensions | 19 x 10 x 5 cm; 460 g |
| Manufacturer reference | ASW-0258 |
| Manufacturer Part Number | ASW-0258 |
| Item Weight | 460 g |

## Images

![KASTWAVESeat Belt Extender & Seat Belt Tensioner, Metal Tongue, Certified Motors Sleeve Buckle Connector Suitable for Most Cars, Relax Shoulder Neck Give You a Comfortable and Safe Experience - Image 1](https://m.media-amazon.com/images/I/71ZEPW+LEJL.jpg)
![KASTWAVESeat Belt Extender & Seat Belt Tensioner, Metal Tongue, Certified Motors Sleeve Buckle Connector Suitable for Most Cars, Relax Shoulder Neck Give You a Comfortable and Safe Experience - Image 2](https://m.media-amazon.com/images/I/61OSSD7x1eL.jpg)
![KASTWAVESeat Belt Extender & Seat Belt Tensioner, Metal Tongue, Certified Motors Sleeve Buckle Connector Suitable for Most Cars, Relax Shoulder Neck Give You a Comfortable and Safe Experience - Image 3](https://m.media-amazon.com/images/I/51u17eyY8HL.jpg)
![KASTWAVESeat Belt Extender & Seat Belt Tensioner, Metal Tongue, Certified Motors Sleeve Buckle Connector Suitable for Most Cars, Relax Shoulder Neck Give You a Comfortable and Safe Experience - Image 4](https://m.media-amazon.com/images/I/71YuFQjgiWL.jpg)
![KASTWAVESeat Belt Extender & Seat Belt Tensioner, Metal Tongue, Certified Motors Sleeve Buckle Connector Suitable for Most Cars, Relax Shoulder Neck Give You a Comfortable and Safe Experience - Image 5](https://m.media-amazon.com/images/I/71n1P51ATSL.jpg)

## Questions & Answers

**Q: Hello, can I know the dimensions of the tongue? Thank you in advance.**
A: I am not sure of the dimension because I did not measure but it is pretty standard because i tried the extension in 3 different cars (Ford Mustang, Chevrolet Tahoe and Honda Accord) it was perfect - I think it is standard so no worries regarding size.

**Q: Can this product be used on a Kia Sportage 2020?**
A: I do not know as I did not try on Kia but I tried it on Ford Mustang, Chevrolet Tahoe and Honda Accord and it fits. The seat belt dimensions I believe are standard all over.

## Customer Reviews

### ⭐⭐⭐ 3.0 out of 5 stars







  
  
    Very short
  

*by F***L on Reviewed in the United Arab Emirates on 18 January 2022*

Very short and sadly couldn’t do much as I was planning to use it for a fashion show as a belt around the waist

### ⭐⭐ 2.0 out of 5 stars







  
  
    Does not work on all seats
  

*by N***N on Reviewed in the United Arab Emirates on 15 March 2022*

Did not fit for the back seats of the car, only for the front seats. This was meant to be used for the children car seats but I have to now re-sell this item.

### ⭐ 1.0 out of 5 stars







  
  
    Not compatible with my 2 cars
  

*by M***L on Reviewed in the United Arab Emirates on 7 July 2022*

The product is ok, however I could not use it as it was not fitting neither in my Suzuki Swift nor in my Chevrolet Impala. So, it is not very universal in the end. :(

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**Shop now:** [https://www.desertcart.hu/products/358578806-kastwaveseat-belt-extender-and-seat-belt-tensioner-metal-tongue-certified](https://www.desertcart.hu/products/358578806-kastwaveseat-belt-extender-and-seat-belt-tensioner-metal-tongue-certified)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-05*