This is a substitute for ALU-SF. The dimensions are almost the same. The material is aluminum. *Please note that this is not genuine.* This is a set of two, so please use it by sandwiching the belt loop. Laser cutting, and the pipes are laser welded. Thin metal fittings like those from other sellers may not have sufficient strength. The belt loops on this product are firmly welded, so they are strong enough for use without worry. Made of aluminum, it is one-third the weight of stainless steel. You will feel the lightness the moment you hold it. The surface treatment is barrel polishing. We can laser cut aluminum and stainless steel. Maximum dimensions: 350mm x 800mm Maximum plate thickness: 2mm