Magneto Cruiser Longboard Wheels are made with high-quality SHR urethane. This makes the wheel glide smoothly across the ground for optimal cruising and great feel. The 78A durometer is a little softer for the smoothest possible ride and great grip when you need it. With a diameter of 70mm, these wheels are an all-around workhorse and can handle whatever you throw at them. Set of 4 wheels