2-WAY CLAMP. Stainless Steel Rod Holders. FINISH. Silver. MOUNT: Mid. FITS STAINLESS TUBE SIZE*: 2.5cm - 1.3cm actual OD tube using included sleeve 53661S2). FITS aluminium PIPE SIZE**: 2.5cm - 0.6cm schedule 40 pipe. Investment-cast 316 stainless steel. Unique clamping system will rotate for either horizontal or vertical mounting. Strong integrally-cast gimbal bar. Sized to fit stainless tube or aluminium pipe. Strong investment-cast 316 stainless steel rod holders with a sleek, swept-back look offer maximum corrosion resistance for long life. They feature a clamp system, which allows each rod holder to serve as a vertical or horizontal unit. The clamp cap comes attached horizontally. Unscrew the cap, turn 90 degrees and the rod holder becomes a vertical clamp. *Stainless marine products are made from decorative stainless tube which is measured by its actual outside diameter and is sold in even sizes, 2.2cm , 2.5cm , 2.5cm - 0.6cm , 2.5cm - 1.3cm . **Aluminium marine products are made from schedule 40 aluminium pipe which has no measured dimension equal to the stated Size: In fact: 1.9cm schedule 40 pipe - 2.7cm OD; 2.5cm schedule 40 pipe = 3.4cm OD; 2.5cm - 0.6cm schedule 40 pipe =4.2cm O.D.