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