The CRL Suck-N-Clamp provides "Hands-Free" clamping action for glue-on windshield and side moldings, body emblems and more. Suck-N-Clamp works by attaching the suction cup to any smooth, non-porous glass or metal surface. Then the arm is positioned over the item being bonded, and tightened to hold it in position while the adhesive cures.