The updated Z-Smooth wheels are insanely fun! The 63mm 83A wheels can fit cruisers and longboards. A little softer and slightly larger than our Z-Pro wheels, the Z-Smooth are great all around wheels for tons of different set ups. The Z-Smooth are available in 3 different colors. Pop in some of our Z-Speed bearings and you are good to go! Specs: - 63mm - 83A durometer - Drilled core - Set of 4