The Omni-Block combines a swivel and pulley into one tool, and incorporates a unique side plate that opens while the pulley is still attached to the anchor. Available in single and double sheave versions from 1.1" radius up to 2.6". The Omni Swivel Pulley is made the same unique way that many of Rock Exotica products are made from solid material. The design and function of the pulley require a strong core from which the sheaves, side plates, and swivel top must connect. For this we rely on the capability of our state of the art machining centers to take a solid block of aluminum and cut away material to create this integral part. With precision available only on such a machine, the block of aluminum is transformed into an axle, head piece, becket, and release button housing all in one. The result is a pulley that is lighter, stronger, and more compact than those made by traditional methods and stamped parts