Swix Skate Rollerski NIS Plate Mounted SNS Screw Holes Under Plate Skate Style Wheels, Adult, White Swix Skate style rollerski system 100mm x 24mm wide performance wheels and bearings suited for average pavement quality and mid range speed rating Comes with Rottafella NIS binding plate with SNS pilot holes under the plate for easy binding mounting Lighter than older Proski rollerski models Stable and durable aluminum frame simulates snow conditions