Whiskey Stones 6 Pack, Metal Reusable Ice Cubes, High Cooling Technology, Stainless Steel Ice Cubes, Refreezable Chilling Stones for Whiskey, Vodka, Liqueurs, Wine, Beverage Juice or Soda

It's okay product not as good as I thought.

I wanted to gift it seeing the black box shown in image .. its very misleading there is no black box.. it comes in a plastic transparent dabba

I purchased these to use with iced coffee! No more watered down coffee, and they work great with cold brew. They clean easily and refreeze overnight so they're always ready in the morning.

The size is approximately 1-2 inches the cubes hold cold for a seemingly long time. I use these for a thermos that constantly gets warm. Day 2 loved and glad for the whiskey cubes. Exceptionally great price and cools fast in the freezer. Helps with over heating without the drippy water. Smile it's a winner.

Keeps cold drinks cold but doesn't cool down hot drinks. It was not advertised as such, but, I was hoping to use this with my iced coffee maker. Being tired of watered it down iced coffee from the ice melting I thought this would be the perfect solution. Unfortunately it was not. For other drinks it seems fine though. I have washed in the dishwasher on the top shelf in a basket and seems to clean up just fine.

Keeps your drink cool without diluting. Looks very appealing and sophisticated (cool).

I love cold white wine, and these work for a while but by the time you get halfway through the glass they are about the same temp as the wine. Nice idea though.