Ceramics stones keep the drink cold and saturated instead of diluting melted ice. Chilling stones made of ceramics and serves to chill it perfectly well for sipping your soft whiskey or bourbon. Each polished stone is washable and reusable. Use metal tongs to gently place stones in rocks glasses. Treat your groomsmen, friends or whiskey loving dad to this classy but modern set. This Whiskey gift boxed set is amazing present for your boss, boyfriend, husband, father. 0.8" L x 0.8" W x 0.8" H