These Titanium Gold rod holders are made to fit 1" (1.312" OD) aluminum pipe. Totally new design! Change your rod holder configuration whenever you choose with this unique patented clamping system. Each rod holder's mounting clamp rotates for either vertical or horizontal attachment. Strong investment-cast 316 stainless steel offers maximum corrosion resistance for long life. Choose from sleek, swept-back styled mid mount models with mirror polished gold titanium nitride finish. All models include a strong integrally-cast gimbal pin. Theas holders are made to fit 1" (1.312" OD) aluminum pipe and also includes a clamp insulator to protect anodized finish of rails. Please specify size of holder you want when purchasing.