I'm selling this at a low price because I only used it once at home with tap water for practice and haven't used it since. Size: Diameter 7.5cm x Height 24.77cm Color: Camp Black (CMPBK) This is a water purification bottle that allows you to quickly secure safe water in the outdoors. It purifies water in just 10 seconds and is a compact model with a small drinking spout. You can secure safe water for outdoor activities, overseas travel, and during disasters. It has a check valve (one-way valve) built-in to prevent backflow of purified water within the inner press. It protects the filter from tea and drink ingredients. The one-way valve is removable. 【Materials】 Outer bottle, inner press, cap: Polypropylene Cartridge: ABS Outer rubber of inner press: Thermoplastic elastomer 【Weight】 354g 【Capacity】 500mL 【Heat Resistance】 Outer bottle, inner press, cartridge (resin part): 100℃ Cap: 130℃ *Do not use water above 50℃. There is a risk of damaging the filter performance. 【Filtration Flow Rate】 500mL/10 seconds (3L/min)