All our Gas Struts come standard with Ball Cup End Fittings. Our 6/15 and 8/18 diameter Gas Struts come with Plastic 10mm Ball Cups and our 10/22 and 14/28 come with 13mm Metal Ball Cups. All our End Fittings can be interchanged to suit your specific requirements. We have Ball Cup End in Plastic and Metal, Clevis & Pin, Eyelets, Spherical & Studded options. You can even change the length of your end fittings to make your gas strut longer…so many options. Just ask us if you get confused!! We are here to help you find your Gas Strut Solution.