Clamp Easy-to-use side clamp attached to a 6-foot bungee cord. Works with HQ Studio, HQ Studio2, or HQ Fusion Frames, which have an opening in the sidearms designed to hold the bungee cord. Clamps provide needed tension to the quilt. Listed price is for a single clamp. We recommend using at least two sets of clamps, one on each side of the quilt for extra support.