Our most versatile clamp, the 1004X fits our heavy duty shp stands and works on nearly any bike, no matter what the size or shape of the frame tube. Clamp opens from 78 inch to 4inches 22mm to 100mm. Quick slide lever located next to handle, allowing onehanded tightening. Quick release botton allow head to pivots 90degrees to clamp either topandbottom, or leftandright sides of tube. Adjustable clamping pressure prevents damage to even thin walled tubing. Narrow 3.5 inch 90mm jaws for clamping i