Size-specific aluminum platform pedal provides optimal shoe/pedal interface. Optimal surface area Minimal body profile - 16mm thin Concave body & 10 adjustable pins per side for grip Premium bearings & seal system Stamp small recommended for shoe sizes: 5-10 (us) // 37-43 (eu) Stamp large recommended for shoe sizes: 10-15 (us) // 43-49 (eu) Voted #1 Winner of Vital MTB's 2023 Audience Survey - #1 Flat Pedals To Buy Size-specific Platform Available in Small or Large for opti