Reserve multiple 1/4 screw holes for strong expandability Multifunctional strong clamp with wide ranges of applications up to 50mm, can be used for 90% of daily tubes, and more rangeS of application scenario With 2pcs rubber pad inside, stable and anti slip, and the clamping is more secure Aluminum alloy, the fixture is durability, wear-resistant, and Straight wrench is more for locking, with even force and locking