The MC-60 Multipurpose Clamp from Leofoto is precision-machined from solid blocks of 6061-T6 aluminum. The screws are made of stainless steel, and the clamp securely mounts onto any rod or pipe up to 2.2". There are two 3/8"-16 threaded holes that can be used to mount additional attachments, such as the AM-series magic arms, smartphone clamps, LED lights, and microphones, after installing the bushing reducer to convert the 3/8"-16 hole to a 1/4"-20 screw. Leofoto Multi-Purpose Clamp MC-60