Thank you for viewing. This is a set of three mounts: body mount, head mount, and backpack mount. I am selling unused items purchased in larger sets. The body mount and head mount are adjustable at various points. They are made of a rubber band-like material and are stretchable. The backpack mount is attached to the shoulder straps with Velcro. I have never used them outdoors, so they are generally clean. Instant purchase OK