Features: Anti Theft: Hiddens or Invisibles Smart Lock For Cabinet or Drawer Makes Your Money or Important Document Safe. Invisibles Installation: Adopting hiddens installation design without drilling and disassembly, completely ignoring the thickness, hole diameter, can be widely applied to various cabinets and drawers, and will not damage furniture. Suitable for wooden cabinets, drawers and boxes. Fit both swing doors and sliding doors. The lock works for wooden doors. It is ideal for locking cabinets, drawers, cupboards, closets, lockers, etc. Not suitable for metal doors. Sturdy Mechanism & DIY Installation. The la-tch and mortise are made by abs. They are sturdy enough for locking. DIY Installation: No drilling, installed by screws easily. Easy to operate.Has function of auto-rebounce and auto-lock.Easy to install. No need to drill holes, and no damage to your cabinet. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Unlocking method: Card + BT Power supply: 4 AA alkaline batteries Battery life: 365 days Package List: 1 Set Smart Cabinet Invisibles Electronic RFIDs Lock