They are exceptionally affordable you buy the set of clamping fixtures (head and tail piece)， and then attach them to a length of iron black pipe (not included). A nice feature of the BESSEY \"H\" series pipe clamp fixtures is their height. The extra high base provides industry leading clearance from the work surface. Clamping fixtures are available to fit 1/2 in. and 3/4 in. black pipe. The Pony 3/4 in. Pipe Clamp is designed to be used on any length of 3/4 in. black pipe. This clamp has a clutch disc design for easy adjustments and can be secured at any point along the bar. This clamp meets the rigorous demands of commercial shops， school shops， woodworking or metalworking users.

"H" shaped foot assembly stabilizes the clamp in two dimensions giving dual-axis stability

Extra high base provides industry leading clearance from the work surface

Cast jaws for durability， smooth action spindle

Soft protective pads included

Clamping strength and opening size are dependent on length of pipe used (not included)