Traditionally scent, temperature and taste are the key elements for the enjoyment of scotch or whiskey. Now with the RockRoller you can add motion & chilling into the mix. A simple wrist motion rolls each of the chilling balls around the bottom and the outward curve prevents them from rolling out while sipping. The dual stainless steel chilling balls chill faster and longer with ZERO dilution. A pair of tongs are included for safe handling of chilling balls. The Rock Roller Whiskey Glass in this set boasts a sleek and sophisticated design. Crafted with precision, it offers a comfortable grip and a solid base for stability. The clear glass construction showcases the rich color and clarity of your whiskey, elevating the visual appeal of your drinking experience.