The Tie Down Big Foot Mobile Fall Protection Device, is a non-penetrating fall protection device that allows those working on concrete to be tied off safely, while also providing a great deal of mobility. The Big Foot provides fall protection for 1 fall arrest and 2 fall restraint or a total of 3 workers. This mobile fall protection device is made in the USA and works great on concrete, TPO, and EPDM roofing materials.