2.5" inch perfectly round
 
The perfectly round rock for the perfect bourbon, whiskey, or cocktail. The shape minimizes surface area contact with your drink for less dilution while it lasts longer due to its density. But the sound and look in your glass can't be rivaled.  
 
Small order includes twelve (12) Clear Spheres packaged in three quart-size vacuum bags. Large order is twenty (20) Clear Spheres. Box is 64 spheres individually wrapped.