Shimano SPD-R cleats for road racing in Fixed Mode, this indicates that there is no play when the shoes are firmly engaged with the pedals. 

Compatible with the following Shimano SPD-R Pedals:
- Shimano Dura-Ace PD-7701 & PD-7700
- Shimano Ultegra PD-6601 & PD-6600
- Shimano 105 PD-5500
- Shimano PD-R535

Genuine Shimano replacement part.