1、Fitment: For 50mm pins; Replacement for CAT 308, 308cr, 308e2; Replacement for Hitachi ZX85 usb; Replacement for 50C, 50D, 50G, 60G; Replacement for Vio 80. 2、Exceptional Durability and Wear Resistance: Bucket pin shim kit is made from the toughest engineering polymers, offering low friction and high wear resistance, reducing wear and tear and significantly extending its lifespan. 3、Improved Joint Stability: This kit includes multiple shims which tighten loose joints. From the bucket to the swing arm, it enhances the overall stability and performance of your equipment. 4、Extended Greasing Intervals: The included shims increase greasing intervals, preventing the loss of grease from loose joints. This results in less frequent maintenance, saving time, effort. 5、Prevents Contamination: The shim kit effectively prevents dirt and debris from entering the bucket pin. This is crucial as the most worn out pins are those closest to the dirt, thus safeguards vital components from contamination and wear.