This high impact plastic clamp is the ticket for installing any accessory to your UTV roll bar. Adjustable size fits 1.5" to 1.75" roll bars. Even the tension is adjustable with the twist handle! The handle then cams over to lock in place. The great part is this is quick release without tools! Just pull the handle and pop the clamp off the rollbar. Install your accessory to the clamp one of two ways. There is an M6 threaded insert that can be bolted to or there is pocket on the inside to mount an M6 (or 1/4") bolt facing outward. Sold EACH.