This outrigger pins to the frame with an upper and a lower pin and there is a bolt that when tightened eliminated all slop. Our large outrigger is 30 in long. Use this when stacking 3 high. Notice the pictures of competitive outriggers that use a clamp to hold in position. Clamps can fatigue and loosen under load and thus we think our outrigger that is attached by pinning is far superior to a clamp. We will no longer sell an outrigger that clamps into place. Yellow Powdercoat. Set of 4.