The xAxis Sealed Flex Joint is a technology step - up for suspension joints and linkages. xAxis delivers reduced compliance vs rubber, improved durability vs spherical bearings, and increased angularity vs urethane. Featuring sealed ends to keep grease inand contaminants out, a highly polished ball, and 19deg of articulation, this cross axis ball joint will meet the most demanding requirements. Build your next link with this 12mm X 40mm X 40mm xAxis or use it to upgrade your Min - Cooper Rear Control Arm ( 67610 ). California Residents WARNING