These are inline skates equipped with MARSBLADE. Frame: MARSBLADE Boot: NikeBauer SUPREME one95 Size: 5EE Frame Material: Magnesium and Aluminum Oven-moldable Originally ice hockey skates, but the original runners and holders have been removed and replaced with Marsblades. There are scratches as they were used on asphalt. Accessories: Wheel removal wrench. Wheels are not included. Features of MARSBLADE The lower frame moves up and down with the blue rubber bushing in the center of the frame as the pivot point. The boot sinks forward when in a forward stance and sinks backward when in a backward stance. This allows all four wheels to remain in contact with the ground during forward skating, backward skating, and turns. Even at high speeds, the edges do not slip out, allowing for stable skating. Regarding the comparison between inline hockey and Marsblade, it took about 30 minutes to get used to it. There is a sinking sensation. Adjustment is possible by tightening the bushing with the dedicated wrench. The manufacturer claims it feels similar to ice, but in reality, it is different. If you have good skating technique, you should get used to it quickly.