JJC LH-74B Bayonet Lens Hood for Canon EF 70-300mm f/4-5.6 is II USM Lens, Replaces Canon ET-74B

JJC Reversible Lens Hood Shade for Canon EF 70-300mm f/4-5.6 is II USM Replaces Canon Lens Hood ET-74B, with Button to Lock or Release

Canon Cameras US EF 70-300 is II USM 70-300mm f/4-5.6 Fixed Zoom Camera Lens, Black (0571C005)

Amazon Basics Circular Polarizer Camera Lens Filter - 67 mm