The Akerworks Flat-pack Clampy Kate features the infinitely repositionable Clampy Kate base clamp (with non-marring rubber pads). Attach onto any surface up to a thickness of 2 ⅛ inches (54mm). Doors, tables, chair backs… your imagination is the limit! The included yarn caddy features a 1/4″ shaft which is 4″ long. Two TensiTamers are also included. The TensiTamer is Akerworks’ patent-pending gizmo that lets you precisely adjust the yarn tension you prefer. Purple whorl.