Features: Easy to install. No need to drill holes, and no damage to your cabinet. Easy to operate.Has function of auto-rebounce and auto-lock. Stainless steel latch and ABS plastic lock body, durable and anticorrosion. One master card can be set to open several locks. so you only have to keep one key to control all locks. Motor life span is about 100,000 times, the Static Power Consumption less than 5μA. Powered by 4pcs AA alkanline battery, which can used for more than 12 months. Master Card/keychain have been set for the lock, no need to be programmed or activated. All you need to do is to install 4 pieces AA alkline batteries, then you can use the lock. This is suitable for wooden door only, widely used special for drawer, locker, cabinet, slidding door. Stand-alone,reset system can be recognized all cards ( Don't worry the problem of losing the card). Great helper for using, soon and conveniently. Cards needn't writting. Specifications: Quality: 100% Brand New and High Quality Color: Black color Material: Stainless steel, ABS plastic Accept Cabinet or Wardorbe Door Thickness: Within 30mm Apply Door: Wooden door only Power Supply: 4 x AA batteries (Not Include,Or can't passed the custom security checking) Battery Life Span: ≥1.5Years Operating Temperature: -30°C~+80°C Relative Humidity: 15,000V, information can be saved though in strong static. Static Power Consumption: