Cam Ski Rack

I designed this cam style ski holder to keep skis up off the ground and easy to grab. Simply lock the cams on the skis and friction does the rest. To remove you just need to lift up and away. For hardware you need 3" long ¼-20 bolts (https://www.mcmaster.com/91247A554/) and nuts (https://www.mcmaster.com/95615A120/)For the grip I used 3" wide 1/8" thick neoprene rubber strips, cut to length (https://www.amazon.com/dp/B01CGZPP9M?psc=1&ref=ppx_yo2ov_dt_b_product_details) I tried to use