Clean it and wash it with hot water before use; Do not put juice or milk in it; Anti-bacterial, tough and high water pressure resistant; Conform to Chinese national standard, FDA, NSF and EN71; Adopts full thermal bonding process; Tough: >=60kg; Adopts seal water nozzle; Easy and convenient to use; Great for outdoor sports; With handle, convenient to operate; With silicone washer in the cap, anti-leak; Elegant and fine workmanship.