Ideal for wheel truing when theres limited access to spoke nipples such as small, high spoke count wheels or while using an anti-rotation spoke holderThe SW-9 combines two common spoke nipple sizes, 0. 127"/3. 23mm/black (SW-0) and 0. 136"/3. 45mm/red (SW-2). Forged, machined, heat treated, plated and vinyl dipped for years of dependable use.