The Sure-Grip Boardwalk wheel is an outdoor wheel made in the USA. This wheel has a hardness of 78A, which means it's pretty soft and designed for rugged, rough sidewalks and streets. These wheels will fit on almost all modern quad roller skates or skateboards, as long as you have an 8mm axle (this is standard). If you have older roller skates, you might check to make sure on the size. These wheels come in multiple colors.
Sure-Grip Boardwalk Outdoor Wheels: