Rollerblade Hydrogen Pro X-Firm 110mm Wheels 8-Pack Size:8-Pack It has two mounting slots

It has two mounting slots in front

The EVA "shell" and rubber insert components are fused together in the mold to form an integral cushioning unit

Size 4: US 11-12 (UK 10-11 Printed on Bottom)

Powerslide Speed Skates up to 110mm

The jacket is made of a mix of long-lasting natural rubber and synthetic rubber material

Rollerblade Hydrogen Pro X-Firm 110mm Wheels 8-Pack Size:8-Pack It has two mounting slotsHydrogen Pro wheels are made in the USA with the highest quality materials, standards and attention to details to be used during all race conditions and leisure skates for consistent, top end performance on road, track, long distance and sprints. provides the extra speed required for athletic competitions. excellent, consistent performance, superior control in turns, great speed all track speed competitions They incorporate a multi layer technology,