Dravon medical inc Brand Wound Care Supplies, Reorder Code A-110 Dravon Medical Tube Occluding Forceps Blue, 4-3/10 L, A-Clamp, Plastic, Disposable, Non-Sterile. Smooth jaws are featured that allow for occluding of 1mm to 8mm tubing without damage. A special nylon formulation makes the A-Clamp strong yet lightweight. Disposable costs only a fraction of its metal counterpart.