Unbranded titanium seatclamp in excellent condition. For 34.9mm frame seat tube diameter, most likely for use with a 31.6mm seatpost. Weighs approx. 20g so light but not unreliably so. Removed from hill climb bike (decided to glue seatpost into frame to save more weight ????). Bolt copper anti-seized and ready to fit. Thank you for looking! POPMCR