TriGrips non-slip work supports hold projects securely for routing, sanding, painting, drilling, carving, and more. The pads hold projects in place while elevating them 1-3/16-Inch above the work surface allowing complete access to edges while holding the project in place for painting and edge routing. Exclusive integrated Painter's Points provide additional lift from the work surface and makes minimal contact with fresh coats of paint or stain. Internal ballast ensures stability by allowing the center of gravity to flow to the base in any position.? Non-slip friction grip pads eliminate the use of clamps while routing, sand, painting, etc? Tri-Grips allow complete access to edges for painting? Exclusive integrated painting supports provide 3-inch elevation and minimal contact with freshly painted or stained project surfaces? Self-adjusting internal ballast provides support in any position? Set includes 4 pieces