The Stamp pedals have been optimized by Crankbrothers engineers for the connection between shoe and pedal. Two different sizes provide an optimal connection between shoe and pedal. Due to the minimal height a low pedal weight is achieved. The concave platform (15/13/15 mm), as well as the 10 interchangeable pins on each side keep the foot securely in position. 10 interchangeable pins per side hold the foot securely in position. High quality bearing. External seal. Recommended shoe size for stamp small: 5-10 (us) // 37-43 (eu). Igus LL-glide bearings inside and outside. Pedal body: 6061 Aluminium. Pedal axle: scm 435 chromoly. Scope of delivery: in pairs. Dimensions : 100 x 100 mm.