Free Shipping! CAMVATE Super Clamp with 5.8" Magic Arm Super Clamp with 5.8" Articulated Arm, Mounts 1/4"-20 or 3/8"-16 Accessory, Supports up to 8.8 lb, 0.4 to 2.1" Clamp Opening Range, 1/4"-20 Screw on Top, 3/8"-16 on Bottom, 1/4"-20 & 3/8"-16...