NO INSTALLATION NEEDED: Padlock key box with removable shackle allows you to easily hang it anywhere, including doorknob, fence, railing, pipe. None screwing or drilling required. HIGH SECURITY: Heavy-duty zinc alloy and steel provide extra resistance to cutting, hammering and sawing. And it is non-corrosive and weather resistant. The resettable 4-digit combination allows you to define your own code with 10000 unique options. Confidently share keys with loved ones and loved ones and never worry about getting locked out. EASY OPERATION: Four steps only to set the 4-digit combination as many times as needed. Please note that NEVER forget your password, or there is no way to use or reset the vault with keys. CAPACITY: The door key box with shackle comes with a large internal space that can hold up to 5 keys. [NOTE] As the top interior is occupied by the locking mechanism itself, only items with a thickness less than 0.5 cm can pass through this part. Long, thick items like remote control car keys will not fit. BUY WITH CONFIDENCE: Rubber coated hook and the back of the key storage box to prevent scratches; sliding shutter door to hide and protect the dials from dust, rain, snow and ice; environmental protection paint adds corrosion and rust resistance. The padlock key fob is covered by a one-year warranty. Buy with confidence