KNOB KEY SAFE *Brand Name: Master Lock *Width: 3.13 in. *Lock Material: Metal *Locking Mechanism: 4-Digit Combination *Bluetooth: No *Product Type: Lock Box *Keyed Alike: No *Number in Package: 1 pk *Color: Gray *Combination Type: Combination *Packaging Type: Carded *Rekeyable: No *Capacity: 0.004 cubic foot *Lock Type: Combination Lock *Waterproof: Yes *Discovery SUP