1/2 sheet of Hydro-Turf 3/16 (5mm) 23″ x 86″ with Small Diamond groove. Big enough for 1 board. Trim to fit any shape. Slightly softer with aggressive brushing 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.