The special foam impregnated non-slip skin holds any type of material in place, allowing users to route, sand, drill, carve and paint without clamps and with assurance the workpiece will not move. When on their flat side, TriGrips™ holds a work piece 1 3/16” above the bench top. Full and easy access to the material’s edges allows users to route, sand, drill, carve and paint without clamps and with assurance the work will not move. When set on edge, TriGrips™ raise the work piece a full 3 inches above the bench. In combination with the cone-shaped tip formed into one corner of the block, a set of 4 TriGrips™ offer a no-extra-cost alternative to single-duty painting supports. Self-adjusting, stabilizing internal ballast flows to the base of a unit set in the vertical position. TriGrips™ support larger work at its edges, narrower, longer work along its median, or when grouped together form a concentrated center support. TriGrips™ can also be used as support for non-work projects, such as beneath a computer keyboard.