This economical strap clamp makes it easy to assemble rectangular frames up to 144 inches in circumference. The high strength strap pulls evenly on both ends of the strap, thus placing even pressure on all 4 corners. This clamp may also be used to clamp other shapes including round items. Just remove the 3 sliding 90-degree corner guides & use the bare strap. You may also purchase the VAC-6 variable angle corner clips as the width of this clamp’s strap is the same as that of the VAS-23 clamp. Complete with the high quality 2K handle for comfortable grip.