The Prime-Line S 4180 Door Knob Lock-Out Device is a new, gray painted metal product designed to secure a door knob by preventing it from turning. It comes with a key and is keyed alike for convenience. With dimensions of 3.75" in length, 4.25" in width, and 8.75" in height, this lock-out device is suitable for doors in a variety of settings. The product is manufactured by PRIME-LINE PRODUCTS/SLIDE-CO under model number S 4180.