If aggressive street is your style, check out the Bont Street Flow wheels! It's a super smooth ride over bumpy surfaces and helps cushion hard landings. The street flow is not an outdoor road wheel, it is designed for skaters who prefer open street skate parks, DIY spots, half-pipes, and bowls. This wheel has a 89a hardness/58mm x 32mm. If you would like a complete set-order 2. These wheels are sold in four-packs.