OJ Woolley Roo Double Duro 99/95a Wheels - 56mmOJ Woolley Roo Double Duro Wheels Kieran Woolley pro model Double Duros are a new approach to wheel design and manufacturing from OJ Wheels, featuring a 99a outer durometer wrapped around a 95a inner durometer. Mini Combos feature a wide road surface for stability and consistent slide and an asymmetrical shape, cut with a round back and conical front for customizing your setup. Includes a matching red beer koozie featuring the same kangaroo graphic.