The Dreambaby Mag Lock 8 Locks and 1 Key is totally invisible from the outside, providing a secure lock impossible for children to open as it can only be opened with a very powerful magnetic key. Easy to use by simply aligning the magnetic key on the front of the door to unlock the lock.This magnetic lock can be disabled if protection is no longer needed on a temporary or permanent basis by simply flipping the ‘holdback’ bar at the back of the mag lock. The lock is invisible from the outside. Easy to install with screws included, requires drilling of 7mm hole for each screw.