Crafted for quick turning response and smooth edge-to-edge transitions, Orangatang Knuckles are the ultimate high-energy bushing upgrade for carving, pumping, dancing, and freestyle longboarding. Includes two insert barrel bushings, two gumdrop bushings, two large cup washers, and two small cup washers. Compatible with most longboard trucks (including Paris, Bear, Randal, Carver, Gullwing, Tracker, Caliber, etc). Two unique shapes for highly responsive and customizable turning. The inner diameter features precise tolerances for a snugger fit around the kingpin. The insert barrel features a small “step” to fill the gap between the kingpin and the hole of the hanger, reducing play in the assembly for a more precise response. The gumdrop is a smooth and subtle blend between a barrel and the more traditional cone shape, providing enhanced agility. The rounded edge allows for ultra-smooth turn initiation and improved interface with the washers. In the standard configuration, the insert barrel is placed on the bottom and the gumdrop on the top. Also try double insert barrels (the height of the insert is half the thickness of a Paris bushing seat) or double gumdrops. Replace the included cup washers with flat washers for a less restrictive, highly linear turning rate.