Color: Black material:metal Model:M6 Universal Ball Studs Ball Joints: 10mm Diameter Product name: M6 Ball Stud Bolt Gas Strut End Fittings Package Contents: 4 x M6 Ball Stud Bolts with Hardware Features: 1-Fit for gas spring strut lift support with 10MM socket; perfect for use with gas struts, making up bonnet lifters etc; 2-Made of steel and Zinc Plated with good quality and good anti-corrosion performance; It can last a long time without rust & Durable. 3-Universal Ball Studs, Lift Support Strut Ball Joint Thread Ended Fitting Universal; Each product is engineered and tested before shipping; Note: 1-Different displays &Light shooting may cause the real product may look a little different from the online photos showed. 2-The measurement error is +/- 1-3cm is allowed.