Size: 3-5/8" H/2-7/8" Dia. COMPOSITION: 60% Acrylic + 40% Polystyrene (MS) INSTRUCTIONS: Not suitable for liquors and for warm beverages or microwave use. MAINTENANCE AND CLEANING: This product is dishwasher resistant (top rack only). However, it is advisable to wash it by hand, gently and with neutral soap in order to maintain the transparency. Stackable for easy storage Nautical Design Indoor/Outdoor Use | Stackable Glasses, Set of 12