Inline Rollers by the company SMJ Sport. The Inline Rollers feature a series of aligned wheels located towards the center of the frame, under the boot. They accelerate more easily compared to Quad Rollers because they have a smaller friction surface with the ground, making them ideal for fast skating. High speed requires more balance and control, and that's why experienced inline skaters develop techniques for speed adjustment and stopping.

The special design at the bottom allows you to configure the wheels so you can use the rollers as you wish, giving them the shape that suits you.