Specification: Item Type:Ball Joint Kit Material: Rubber + Steel Alloy Thread Size: , 12mm / 0.47in Quantity: 4pcs (2 upper + 2 lower) Application: A substitute for the original ball head, to solve the problems of abnormal noise of the front suspension and excessive vibration of the front of the vehicle. Applicable : Applied to UTV 400 450 500 550 700 750 Fits all front steering knuckles Replacement for HiSun Replacement for Massimo Replacement for Bennche Replacement for Replacement for Replacement for TSC Replacement for Rural King Replacement for Yardsport Replacement for SuperMach Replacement for Big Muddy Replacement for Qlink Package List: 2 x Upper Ball Joint 2 x Lower Ball Joint 4 x Washer 2 x Pin