Item Name: Bicycle Left and Right Crank Material:Aluminum Alloy Size:17cmx10.4cmx10.4cm/6.69inx4.09inx4.09in Four different colors design to meet your personal preferences. With humanized design, the crank can make it very convenient to use. Made of high quality material, it is durable and lightweight. The length of this crank is 17cm, the width is 10.4cm and the height is 10.4cm. It is suitable for mountain bikes, road cycling bike and folding bike refitting. Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 Pair of Left and Right Crank 1 Set of Screw Accessories