Designed specifically for use with any of Magmas storage rack systems. These straight arms are perfect for storing large kayaks or water toys. Constructed with 1-1/2 in. (38.1 mm) Dia. 304 Marine Grade Mirror Polished Stainless Steel tubing and includes Stainless Steel installation fasteners. Each arm has a tie-down point for securing toys while the pre-installed UV resistant foam padding with heavy duty UV resistant 600D Polyester protective covers help protect them.