anti-violence password lockdescription:1) a new design of "a dual-key code", "Press ", "no holes", "Anti-Tamper saw", 2) both has the safety of electronic password-lock and the solidity of mechanical key lock3)completely to prevent Technology cracking4) no batteries, no keys, is not afraid of the sun and rain.5)apply to the security of motorcycles, electric cars, gates and other areasair cushion description:----high-quality material----special mould technology----superb cool and comfort----elastic----air pervious and healthy----environment friendly----special for cars and sofas, perfect for travel and work----have several seletions of colours: Black, blue, red, yellow, light purple, white ----The product has been patented.