They don't call them Lazer for nothing. These wheels are great for recreational and performance skaters alike. The Lazer performs well on a variety of surfaces for indoor/outdoor use but are specifically designed for outdoor use. They have a new and improved spokeless hub which accepts any standard 608 inline bearing. The solid nylon core hubs are used to provide even weight distribution, a stronger core, and maybe even just a bit more of that aero dynamic action we all love. The Lazer wheels also feature Clear Tech recreation urethane.