Phone strap Rust BlackDESCRIPTION iolom Collection. Although it is called a smartphone strap, this multi strap can be used to hang various items as long as they can be hooked onto a hook. By turning the metal fittings at the end of the strap, a hook comes out, and you can hang items on the hook. You can enjoy hanging not only smartphones, but also other items you want to hang according to the scene. The compatible case is a hard case type, and basically does not fit soft