This PRO Vibe Stem is made of durable aluminum in a sleek matte black color. The stem is designed to fit a 1-1/8 in Threadless steerer tube diameter and has a clamp diameter of 31.8 mm. It is compatible with various bike types including road bikes, time trial/triathlon bikes, cross bikes, and hybrid/comfort bikes. The stem measures 130mm in length and width and has a 10º angle. The set includes only the stem and is brand new from PRO.