Milescraft 1600 Tri Grips Non-Slip Work Supports, 4-Piece Non-slip friction pads hold projects in place without clamps while routing, sand, painting, etc Platforms elevate projects 1-3/16 inch above the work surface for 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 allows the center of gravity to flow to the base in any position 4 piece set