Magma Products, R10-1001 Storage Rack System Base Frame Kayak/SUP Dock Mounted, Polished Stainless Steel Can be mounted on your dock or any flat surface Base rack is 1-1/2" Diameter; 304 mirror polished stainless steel tubing with hard anodized aluminum elbows Straight arms and SUP arms (sold in pairs) are purchased separately to customize the rack to your requirements Base rack and all arms include UV resistant Polyethylene foam pads Stainless steel tie-down points to secure all water toys Extremely strong adjustable arms for any size Kayak, SUP, or water toy