Plan B Pro Spec 6 Pack Skateboard Wheels-Pack of 6 (Prod 50-mm, Sheckler 51-mm, Ladd 49-mm) Ryan Sheckler Pro Model 51mm. Paul Rodriguez Pro Model 50mm. PJ Ladd Pro model 49mm Pro spec wheels zero flatspots superthane formula. 100-Percent guaranteed backed by warranty, light weight, molded dimple pattern similar to a golf ball. Very high end wheel. 101A. Includes 2 Prod sets of 4 wheels, 2 PJ Ladd sets of 4 wheels, 2 Sheckler sets of 4 wheels. 6 sets total (each with 4 wheels)