Sure-Grip Outdoor Roller Skate Wheels
Sure-Grip started with a simple roller skate wheel more than 70 years ago, today selling the same product under a different name called the Sure-Grip original. Made from a material called phenolic which is essentially layers upon layers of fiberglass, this creates a very hard running surface ideal for rhythm skaters and or jam skaters. Who would have thought this little wheel would elevate a company started in a garage to a full-fledged manufacturing facility.
Softer wheels are used for outdoor skating. Outdoor wheels are softer to provide a better rebound for skating on uneven surfaces. Rebound allows for the wheel to "roll" over the uneven surfaces rather then "bouncing" over them like the harder wheels.