Specifications Material: Chromoly steel Dimensions: 3.18 x 1.77 cm (1.26 x 0.7 inches) Package includes: A pair of pedal extensions Each extension extends the pedal 20 mm (0.79 in) from the crank, effectively protecting the rider¡¯s knees, reducing friction between the feet or legs and the bicycle, and ensuring a more comfortable ride. The design is compatible with standard 9/16-inch threaded pedals and is suitable for a wide range of bicycle types, including mountain bikes, BMX, cruisers and folding bikes, meeting the needs of different cycling enthusiasts.