Dragon Formula is Powell Peralta's latest next generation polyurethane breakthrough. Dragons are mid hardness 88A, 93A and 97A wheels that smooth out rough terrain. Now you can roll over previously unskateable terrain on your way to a skate spot, and then skate it as well or better than before with the same wheels. This is because dragons slide like 99A & 101A wheels and still grip when needed. This makes dragons very special and unique. Dragon Formula has taken us a decade of development to perfect. they have amazing speed, a smooth ride, unequalled grip to slide ratio, vibration damping, and extra-long life. this formula is groundbreaking and will make skating more fun and expand the skate terrain available to dragon riders. These measure 52mm x 30mm with a 93A hardness.