The permanent GE KeySafe attaches to any wall or flat surface with 4 dynabolts (provided) and holds 4-5 Yales keys or 1-2 Chubb keys. The GE KeySafe is supplied with a black neo-prene cover which just simply lips over the GE KeySafe, hiding it from view and protecting the GE KeySafe from the elements. Weight 900g. External size 4ﾽ” (H) x 2ﾼ” (W) x 2″ (D). Internal size 2ﾾ” (H) x 1ﾽ” (W) x 1ﾼ” (D)