Roces quaddy 3.0 roller skates Do cool tricks on these stable roces roller skates with hardboot. If you go too fast, you can easily brake with the block at the front of the roller skates. They are adjustable in four sizes by a push button on the heel and have two clip closures with lock and a sturdy removable inner shoe made of polyamide with polyester. Specifications: Colour: blue/black Gender: boys Size: 38-41 Frame material: aluminium Material shoe: polyester, PVC Closure: clip closure