1/2 sheet of our Flat Hydro-Turf 3/16 (5mm). Great for SUP and Surf applications. Big enough for 1 SUP. Trim to fit any shape. Slightly softer with brushed finish for added comfort and traction. Includes 3M self-adhesive for a strong fast application to fiberglass surfaces. Let us know if you have a plastic board so we can apply the correct adhesive for that material.