Box holds several keys (up to five) and key cards for access control systems. Keys can be attached to the lid for convenient one-handed operation, plus codes are resettable. Its StrongBox design also has a solid track record for unmatched quality and security. Mounts easily with included hardware. 4 1/8"H x 2 1/2"W x 2 1/4"D. Black. Reshipper pack.