This strap is 9 inches long (including the buckle ) made of loop self adhesive back, it has FOUR flaps. Depending on the position that it will be finally placed, you just need to cut one or two of the front or back flaps and the length as is needed before you install it. The red center lock shift position to open and close to challenge the opening. If is in open you can squeeze the buckle. If is in close you can not squeeze the buckle. Good to use on stain steel appliances, wood, metal, and glass surfaces. Best use is for indoors.