Security Lock Boxes by Kidde. Details: Slimline KeySafe simply attaches to any wall or flat surface with mounting hardware included. This compact version holds two keys and comes in assorted colors. KeySafe Original 2-Key Slimline lockbox holds up to 2 keys and attaches securely to any wall or flat surface with included mounting hardware. Easy-to-use pushbutton combination can be changed at anytime for added security. There are over 1,000 different combinations available. The StrongBox design has a solid track record for unmatched quality and security. Great for after-school access for kids. Never be locked out again! Color – titanium gray.