The Moxi wheels from Riedell are great for outdoor skating, but can also be used indoors. These wheels come in a hardness of 78A, measure at 62x43mm, and are available in a variety of colors. This is a durable wheel intended for outdoor use and made to last. The Moxi wheels reduce friction and increase speed on rough surfaces. The wheel is made with a urathane hub that is responsive to the skater's movements. Requires 8mm bearings. These wheels come in several colors so you can pick your favorite!