1/4" BSP Tapered Male x 6mm Outside Diameter x 4mm Inside Diameter, 90┬░ Unequal Tail Brass Nickel Plated Swivel, with Spring Guard, Polyurethane Ester Recoil Assembly, Metric, Red, 4 Metre Coil, Working Temperature -20┬░C to +70┬░C, FT Pro