TACO 90 Top Cap Ball & Socket Mount for 7/8" TubeDesigned with boaters in mind, TACO's Top Cap Ball & Socket mount are easy to install. Constructed of 316L polished stainless steel that looks good and will provide long lasting corrosion resistance. A delrin insert eliminates rattling while enabling a wide range of motion and smooth operation.Features: Polished marine-grade stainless steel; Rattle free; Set screw fastner; Fits existing side curtains, canvas, tubes; Tight & secure fit; Click here for TACO Top Cap Ball & Socket Mount Installation Instructions