This hanger cap, also known as a mounting clip, is a genuine replacement part from the equipment manufacturer to help you store hand attachments that you are using. It is a small plastic cap that acts as a protective cover for the hanger hook in lawn and garden equipment. It protects the hook from damage and keeps it from getting caught o...Read moren other items. You will need one cap for each of the attachments or tools you have. The cap will need to be replaced if it is damaged or can no longer stay attached to the equipment. To install the new cap, simply place the new cap at the end of the attachment on your equipment. Sold individually.