Guarantee:
Our whisky stones are all made of natural granite/marble, which will not react to water, alcohol and or other drinks, and regarded assafe by SGS (with reference to European Council Directive 84/500/EEC & 2005/31/EC(articles intended to come into contact with foodstuffs) You can ask us for SGS Test Report if you need.

Features:
Eliminates the ice that melts in your drink
Really cool to use and make a fantastic gift!
Has no flavor or odor that would effect your drink like normal ice
Rounded edges prevent scratching to your favorite glass
Completely washable and reusable
As stones are all natural, so there might be some color difference/pattern difference.

Specifications:
Material: natural stone
Color: black, dark gray, light gray, white andbeige, red(the new arrival).
Item size: about 222cm/ 0.780.780.78in (+-2mm tolerance as cut by hand)
Item weight: about 17-22g per stone(different color, different weight)

Usage:
Clean the stones, stock them in your freezer for 4 hours above, serve 3 stones to your drink(liquid height no more than 1 stone height, normally 3stones only serve 60ml/2 fl oz liquid), stay for a while and enjoy your cooling drink!

Packaging: 4/6/9/12 stones in a velvet bag and then in an OPP bag to be a set

Package includes:
4 or 6 or 9 or 12*stones
1velvet bag or 1velvet bag+1*box