Free up deck space on your boat or storage space in your garage with a SurfStow Stand-Up Paddleboard Storage System. This SUPRax add-on easily connects to the SUPRax Single Stand-Up Paddleboard Storage System (item #848491), allowing you to secure two SUPs to your boat or wall. Durable aluminum alloy is anodized for strength. Heat-pressed, die-cut EVA protective foam protects your boards from damage while in storage. Heavy-duty shock cords keep boards in place. Accommodates all board shapes and sizes. Fits 7/8", 1", and 1-1/4" rails. Wall mounts sold separately (item #848493). Easy to install. 27-1/2"H x 1-3/4"W x 21"D.