The Ridge Freeline Skates Green are heavy quality skates. Because only the wheels turn and the rest is firm, they are strong and large for tricks. The movement is not easy to get the spin out, and you should start on a flat sloping road. If you can do it, quickly no one does it just after the .....Before you start, it is best to watch some videos on Youtube. One set consists of two separate skates. Specs: height: 3.5 inches / 90 mm. Weight: 2 £ 4 ounces / 1015 g. Wheel spacing: 4.0 inches / 102 mm. Decks: aluminium. Wheels: 72 mm. 85 Utility vehicles: aluminium cast steel S-bending axle inside. atures