Package:2Pc Stone cube_x005F_x000D_ Features:_x005F_x000D_ Eliminates the ice that melts in your drink_x005F_x000D_ Really cool to use and make a fantastic gift _x005F_x000D_ Has no flavor or odor that would effect your drink like normal ice_x005F_x000D_ Rounded edges prevent scratching to your favorite glass_x005F_x000D_ Completely washable and reusable_x005F_x000D_ As stones are all natural, so there might be some color difference/pattern difference_x005F_x000D_ Specifications:_x005F_x000D_ Material: natural stone_x005F_x000D_ Color: as the picture_x005F_x000D_ Item size: about 2*2*2cm/ 0.78*0.78*0.78in (+-2mm tolerance as cut by hand), the dark/light gray ones are smaller: about 1.8*1.8*1.8cm/0.71*0.71*0.71in (+-2mm tolerance)_x005F_x000D_ Item weight: about 18-22g per stone_x005F_x000D_ Usage:_x005F_x000D_ 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