This large clip is used to secure the iMAC computer, but can be used to protect other devices such as LCD monitors that have an attachment point of 3/4" in diameter or less. The clip is 1.25" wide and 3.6" long and made from super strong 16 gauge stainless steel. There is 1/2" long by 1/4" wide slot in the clip that can be used to secure keyboard and mouse cables. The diameter of the hole that the securing cable goes through is 3/8".