The Master Lock retractable key tether is an accessory intended for use with the Master Lock mechanical and Bluetooth enabled lock box families. The key tether secures the key to the lock box, precluding the guest from taking the key with them after accessing the property.
Fits inside the following Master Lock lock boxes: 5400, 5401, 5414, 5415, 5420,5424, 5425, 5440, and 5441
Retractable cable extends up to 36 in (91cm)
Key tether is attached to the inside of the lock box with very high bond (VHB) tape
Keys are attached to the end of the retractable cable via loop end with adjustable collar or with a key ring
Tether will then retract any slack in the cable when the user puts the keys back into the lock box
Fits in any Master Lock lock box style