YSTD&reg; 550ML Outdoor Water Bobble Hydration Filter Bottle Hiking Gym Filtered Drinking Height: 21.5cm/8.39''(approx) Diameter: 8cm/3.12''(approx) Stylish, reusable bottle for you with an ingenious replaceable carbon filter. Please stay away from high temperature, fire, prevent deformation!! The carbon removes chlorine and organic contaminants when water passes through the filter, making water better, with every sip.