Carbon-Ti X-Clamp 3 ultralight seatpost clamp with Al7075-T6 CNC machined body and Titanium Grade bolt. Weights from 9.3 grams. Available in 30.0-31.8-32.6-34.9-36.9 mm diameters and matte black anodized finishing with white laser etched graphics. Minimalist design,  is light, beautiful, safe and works great! 100% Made in Italy.