The strongest and most durable locks in the market. These baby magnetic safety locks use extremely strong 3M adhesive tape so they attach firmly without leaving marks. Extra strong magnets work for most cabinets and drawers up to 2 inches. No additional tool, drilling or hardware required. Child safety for your drawers and cabinets in minutes. It’s that easy! Clean the surface (Very important). Peel off the adhesive film. Stick the latch plate to the frame. Stick the lock to the door or drawer. Close the cabinet door or drawer and check for proper fit. Can be repositioned immediately. Once aligned press firmly for 5-10 seconds on to the locks and latches for better bonding. Please allow 24 hours for adhesive to dry before usage for maximum strength. Use the magnetic keys to open. When your baby is not at home? You can use the unlocked mode by clicking the small lever to disable the locking function. Contents: 20 locks and 20 latch plates, 3 strong magnetic keys, 3 keys docking stations (For mounting to non-metallic surfaces such as wood) and butterfly stickers.