Riedell Riedell Ninja Wheels - Agile Roller Skate Wheels - 4 Pack of 59mm x 38mm Wheels | Blue | 93A Hardness

DURABLE FOR MANY LAPS OF USE - The Sonar Ninja roller skate wheels' durable urethane breaks in quickly and offers an excellent feel. The precision aluminum anodized hub offers excellent stiffness, response, and curb appeal with user-friendly bearing fit. DESIGNED FOR ROLLER DERBY - Light, fast, and aggressive to ride, these wheels are ideal for the precision stops of roller derby. These wheels are designed for jam, derby, speed, and session skating styles SMOOTH RIDE FOR UNINTERRUPTED SKATING - These hard skating wheels roll smoothly to help improve the comfort of your ride. The Sonar Ninja wheels from Riedell can upgrade your skates or be future replacements. HIGH PERFORMANCE - The Sonar Ninja agile skate wheel has a solid aluminum hub that provides high performance at a nice price. SHOW YOUR STYLE - These skate wheels each come with a unique color and hardness combination: Teal 88A, Pink 91A, and Blue 93A. This product is not a children's product and is not designed or intended for use by children 12 years of age or younger.