Description Ultraview Archery&';s ergonomic Contour Knob delivers a secure, repeatable anchor point for ultimate shot consistency. Designed with non-slip spiral grooves and a precision dished shape, it provides a natural thumb placement and confident feel, even in wet or cold conditions. Finished with durable CerakoteA(R) coating, this knob is built to withstand years of hard use without wearing down. Compatible with the UV Button(TM) and most other thumb button releases, it&';s a simple, high-performance upgrade that enhances control, comfort, and repeatability in every shot. Specs Compatibility UV Button and most thumb button releases Material Cerakote finish for maximum durability & longevity Manufacturer Warranty Lifetime against manufacturer defects & material failures