Rust-proof and DurableHigh-quality glass cup without bisphenol A, classic narrow cup, rust-proof, durable, easy to use, slim body, easy to grasp and place cup holder, easy to clean, safe and reliable. Round Cup MouthInsulation cup structure, round cup mouth, comfortable to drink. Excellent Insulation PerformanceStainless steel double-layer vacuum insulation cup structure, excellent insulation performance. Vacuum Insulation10 ounces, stainless steel double-layer, vacuum insulation technology, can maintain hot water temperature for 12 hours, cold drinks for 12 hours. This unique glass is a companion for babies. Wide ApplicationLight and sturdy, easy to carry anywhere, vacation or in the car, suitable for home, beach, lake, office, party, RV trip, cabin trip, camping, hiking, picnic. Specification: Capacity: 10oz Material: 304 inside and outside pull up the liner Size(approx.): height 11.1cm/4.33in (without cover height) caliber 7cm/2.75in bottom diameter 5.3cm/2.08in Gross weight: about 265g Net weight: about 215g Packing List: Cup*1 Note: 1. Please avoid hitting and falling in case of breaking and affecting insulation performance. 2. Do not place next to the heat source, so as not to affect the function. 3. Don't use boiled water to feed children, use warm water to avoid scalding. 4. Do not put the cup directly into the microwave to heat. 5. Do not add dry ice, carbonated beverages and other liquids that are prone to high pressure, and do not add soy sauce, soup, and other salty liquids to avoid corrosion of the pot. 6. After filling perishable beverages such as milk, please drink and wash as soon as possible to avoid deterioration of inner container..