52x31mm PU wheels99A durometerTextured surfaceFor street or park ridingSet of 4 wheelsCal 7 Polyurethane Skateboard Wheels for Street and Park 52x31mm 99A offers a set of four quality, all-purpose wheels for your street or park deckThese tough, 52x31mm wheels have a durometer rating of 99A, making them hard enough to handle your tricks and slides.A simple, quality, no-brainer wheel that won’t let you down.