"The Defender Compact Key Safe is designed to store keys and entrance key fobs to allow care workers, cleaners, dependents etc, to gain access to a property without compromising security. The small and sleek design can store up to 5 keys. The unit has 10 numerical push buttons which are simple and quick to use, even in low light conditions. • More than 1000 combinations • Suitable for indoor and outdoor use • Weatherproof cover • Comes with 2 x thunderbolts (and 4 x screws) • Unit weight: 451g External dimensions: 115 x 65 x 55mm Internal dimensions: 80 x 40 x 20mm"