NIB set of stainless steel hybrid cocktail glasses, plus extra glass insert. Beautifully designed and meticulously crafted to elevate your cocktail experience. whether your favorite drink is shaken, stirred, blended or even hot, these cocktail glasses will keep your drink perfect til the last sip. Features: Double-Wall Vacuum Insulated No Messy Condensation Puddles No Coaster Needed Innovative Glass Lock Technology Artisanal Ice Approved Ergonomic Shape Specs: Assembled Weight: ~0.8 lbs (0.365 kg) Height: 4.5” (115 mm) Max Width at Glass Top: 3.4” (86 mm) Glass Rim: ~2mm (similar to standard rocks glass) Volume: 12 oz (Double Old Fashioned Size) Cleaning: Hand Wash Only