Polyurethane based suspension, driveline and chassis components have been designed as an upgrade to the soft factory rubber components. Precision fabrication assures perfect fit Holds super grease for quiet operation Premium grade polyurethane components Provides necessary rigidity Brand Prothane Model Prothane 4-806-BL Exterior Painted Item Weight 4.58 pounds Manufacturer Prothane OEM Part Number 4-806-BL Item model number 4-806-BL Product Dimensions 6 x 6 x 4 inches Manufacturer Part Number 4-806-BL