[Dramatically improve your footwork! Easy installation! SPEED MASTAR BEARING!] *As of October 2018, the name has been changed to SPEED MASTER BEARING. Simply replacing the original SPEED MASTAR BEARING with a new one will smooth out pedal movement, allowing for faster footwork. The beater returns quickly, making it easier to play detailed phrases. You'll also be surprised at how much your feet will feel tired after long hours of use during live performances or practice sessions. In addition, by making the spring mounting part a hook type, it can also be attached to foldable models, and can be installed without compromising the benefits of foldable pedals. "The SPEED MASTAR BEARING instantly produces all the nuances you want, from light to heavy, fast to slow, and more!" - Hideo Yamaki "The pedal's footboard grips your foot much better. There's no loss of response to the spring, so the pedal feels much lighter to press." - SASSY Set contents: Bearing, mounting screws, washers. Compatible models: SONOR PERFECT BALANCE SN-PB *Installation instructions included