Woodys Slim Jim Dooly Performance Carbide Wear Rods - 4in. SC4-5000 The design of this runner is specifically for riders who love the reduced darting feature of Woodys original Dooly and also want a more performance-enhanced product when cornering Woodys Slim Jim is more responsive in the corners and comes in at a whopping 31 percent lighter than the original Dooly Durable 3/8in. - 16 mounting studs ensure secure fit Available with 4in., 6in. and 8in. of 60 degree turning carbide Sold each