Works for Any Surfboard With Fins up to 6". Rated at 50 Lbs. Tested over 150 lbs! Large 4" Gap. These are 3/8" THICK thicker than others. Sizes and Styles To Fit Any Surfboard Snowboard or SUP horizontally or vertically. A very firm sturdy feel. Complete with clear Anti-Ding Pads works best with screws and wall anchors found at any hardware store. Super Strong Clear Acrylic that lasts forever. Designed by Dorsal USA. Trophy Style - Horizontal.