Whiskey Chilling Stones - Set of 6 Handcrafted Premium Granite Round Sipping Rocks - Hardwood Presentation & Storage Tray by R.O.C.K.S.

A gift, so not sure.

I got them for a present, the person was over the moon with them and looking forward in using them .

Better than ice watering down the drink

Bought as a gift for a whisky lover who wanted to keep their drink chilled in the summer. Recipient is happy with them.

Nice presentation box and excellent rocks work a treat

Great item but the worst delivery ever. Driver did not follow instruction and took a picture of box by busy road saying it had been delivered correctly. Not good Amazon.

I was genuinely surprised at how well 3 of these cooled a "tall drink". One or two in a wee dram is sufficient to get the right bite. If I had a criticism, it's that space is at a premium in my freezer, so the nice to look at wooden block is a bit of an extravagance. But I just put them in a freezer bag and leave the block out.

They do work but your expectations have to be set in the realms of science, they can only do so much, i put 2 stones that were at -24 C into a 40ml shot of whisky that was at 22 C, the brought the temp down to 12 C. Which was pleasent. It didnt dilute the drink if that is what you want. Ice cubes can make it colder as they are also diluting the drink. Oh and they look great