The Westlake Seatbox Arm and Upright has been designed to fit on to most seat boxes and can adjusted to suit. The arm features a hand wheel-lock fitting to secure it on the leg and the upright can be locked in to place by tightening the wheel nut.Ideal for adding to any seat boxUpright arm comes with a 3/8s brass threadHand wheel-lock fitting on arm allows it to be securedUpright features wheel-nut that secures the clampPerfect for using as a rear rest, pole section roost red or any other seat box restFits rear or front legsFits 25-30-36mm legLength: 20cmColour: Black