The Versa Clamp is the most versatile guardrail C-Clamp in the market place for Fall Protection. Use it on parapets as well as concrete slabs to provide the Fall Protection the workers deserve. The compression plates are off-set so not to damage copings or flashings on parapets. Its unique compression locking system makes it Simple and Fast to install. Simply place the clamp over a parapet or on a concrete slab and slide the compression plate against the surface. Turn the compression rod against the plate and you are finished. Made in the USA and built tough.