Spitfire Formula Four 99D Swirled Classics Skateboard Wheels - Purple/Teal Fingerboard Hanger Blackriver Ramps are professional wooden

Blackriver Ramps are professional wooden fingerboard ramps

Spitfire Formula Four OG Classics 99Duro Skateboard Wheels have a wider riding surface and cutaway design for unmatched control and lasting speed everywhere

90% Pre-shrunk cotton / 10% Polyester

The Old School Cert was modified from the original 1973 Full-Tec and features a retro shape that sits low on your head

It has a snappy flex

Spitfire Formula Four 99D Swirled Classics Skateboard Wheels - Purple/Teal Fingerboard Hanger Blackriver Ramps are professional woodenDesigned with your favorite classic Spitfire Classic wheel designs and manufactured with the quality high performance, Formula Four urethane. Formula Four Urethane lasts longer, withstands more abuse and performs superior to all other wheels. Designed to combine all the desired properties of a performance wheel without sacrificing any one attribute at the expense of another. Manufactured using a 100% pure urethane compound, Formula Four wheels out