New from Xray for the NT1 are these CNC-machined 8.4mm diameter mounting pivot balls, made from lightweight 7075 T6 aluminum. Sold in a set of 4, each pivot ball is 63% lighter than its steel counterpart, giving a total combined weight saving of 18.8 grams on a car. Precision machined with highest tolerances using fully-automatic German CNC-machines. High-quality hard coating is done at Xray’s own in-house fully-robotic hard coating line, ensuring a perfect surface every time. A post-hard coating black finish provides a stylish look.