Aluminum tube made out of very hard quality aliminum often used in aircraft industries.
The tube has an arc-shaped bottom to create a more flexible blade under the hinge. This give a extra steering propertie that makes it an easy skate to use skate with extra grip. A good skate for the fanatic rectrant skater that wants a blade that stays sharp for a longer time.
Aluminum cups make mounting possible of 3 sizes per tube length.
High quality laser cutted stainles steel blades. Hardened with grate care.