Set of 2 MAVIC Tubeless Valve Kit Square Type for UST Rims Tubeless [Parallel Import]1 piece x 2 packs This product is square. (Please note that it is not round) Length: Approx. 30mm UST tubeless valve compatible with MAVIC's UST tubeless rims Package design is subject to change without notice by the manufacturer Manufacturer: MAVIC Package size: 9. 7 x 8. 2 x 1. 6 cm; 20 g Package weight: 0. 02 kg Battery usage: No Batteries Included: No