Features 1、The main body is made of chromium molybdenum steel, fittings are made of stainless steel, sturdy and durable. 2、SPD-style mountain bike locking pedal system is universal. 3、All brands of self-locking pedals, as long as the SPD mountain pedal system will be ok. 4、Compatible for Shimano PD-M520 M540 M324 M545 M424 M647 M959. 5、This product is used to connect the self-locking pedal and self-locking shoes of mountain bike. Specification Features: The main body is made of chromium molybdenum steel, fittings are made of stainless steel, sturdy and durable. SPD-style mountain bike locking pedal system is universal. All brands of self-locking pedals, as long as the SPD mountain pedal system will be OK. Compatible for Shimano PD-M520 M540 M324 M545 M424 M647 M959. This product is used to connect the self-locking pedal and self-locking shoes of mountain bike. Specification: Condition: Brand New Material: Chromium Molybdenum Steel + Stainless Steel Color: Black Weight: Approx. 66g Package List: 1 x Set of Installation Fittings Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List