Lansky's Controlled Angle Sharpening System Super C-Clamp is designed to the used with Lansky Sharpening Systems. The Super C-Clamp easily mounts to the end of a table or workbench for secure set up and 360 degreee rotation. The 2-piece aluminum mount disassembles quickly for storage. The C-Clamp has an exclusive patented flip over feature that allows sharpening of both sides of the blade without additional handling.