Vulcan TSC70121 Magnetic Key Holder PVC Black 1-5/8 in W 3/8 in H 3 in D - Pack of 16

You can avoid lockouts by hiding a key(s) for emergencies in this magnetic key holder. Safely hide a key, cash or notes for friends, family, neighbors, and children. The two heavy duty magnets hold on to any steel surface; strong enough to be placed underneath a car and survive rough terrain.