To prevent damage to a camera main body by insert-holding a small string in the knot of a big string, to form the small string like a loop.

This strap consists of the big string 1, the small string 2 and a fastener 3 made of plastic, metal, etc. At this time, the small string 2 is insert- held by the big string 1 and their ends are fixed in a gathered state by the fastener 3 made of the plastic, etc. At the time of using, only the big string 1 is reversed to make the small and big strings 2 and 1 a line and a part made of the plastic, etc., goes into the big string 1, to be prevented from coming into direct contact with the camera main body. In other words, the strap is constituted so that the fastener 3 made of the plastic or metal which is a source of anxiety that the fastener 3 might damage the camera main body, in the strap goes into the strap, to obtain a protective effect for a camera. Further, in a list strap, a function as a simple case (protector) is obtained in such a manner that the outer periphery of the camera is made the same as the length of the strap.