Carbon Lightweight: The road bike pedal average weight is 4.7 Oz/piece. Carbon composite body: 30% short carbon fiber, 70% PA6. The axle of Pedal: Chromoly steel. Suitable for daily training and sports. Use convenience:The road bike pedal self-lubricating bearings are free of maintenance. Adjustable tension: the tension can be adjusted according to different riding habits. Enable the rider clip in and clip off the lock quickly. The large pedaling area can make the pedaling power efficiently transmitted. Pedal installation: The package include three hex keys. 8mm hex key; Cleat installation: 4mm hex key; Tension adjustment: 3mm hex key. Cleats: ZERAYType,compatible Look keo.These pedals don't fit work with Look delta cleats and shimano spl sl cleats. Package content: one set of pedals, one pair of cleats, six screws, six washers, instructions for use.one 8mm hex key ,one 4mm hex key,one 3mm hex keyWe provide a 1-year warranty, free return and exchange.（Note: Purchased used goods are not eligible for commercial warranty. ）