These rolling wine decanter glasses are handcrafted right here in Vermont. Fundamentally, decanting serves two purposes: to separate a wine from any sediment that may have formed and to aerate a wine in the hope that its aromas and flavors will be more vibrant upon serving. If you don't have a tradition decanter vessel which holds a 750 ml bottle, now you can get the same benefits with these glasses. Give'em a spin and let the celebration begin. They also make a great addition if gifting one of our decanters. Each glass is handcrafted from 100% pure, clear soda-lime glass and rimmed in colored glass. Dishwasher safe but hand washing recommended to preserve their beauty.