The screw and female assembly for mounting cuff buckles. These are from FR Skates, but they can be used to mount standard cuff buckles (SCB) from most brands, and in many cases middle buckles also.
Razors SL Heel Pads absorb shocks from jumping gaps or taking drops. Designed for the Razors SL and Shift models. Price is for two heel pads.
The Aeon Shock Absorber is for use in all USD Aeon Skates. Be sure to get the correct size (2 sizes).
The Rollerblade Twister Shock Absorbers have a unique design with lines that curve around to reduce vibrations, better disperse impact, and keep in position.