Riedell R3 Demon Skates Feature. Boot: R3 (choice of black or white). Choice of color: Black, Blue, Green, Orange, Pink, Purple, Red, or Yellow. Toe Stop: PowerDyne Adjustable Black. A perfect combination of performance and value has made the R3 the most popular roller skate in rinks everywhere.Offers the precision-fit R3 boot with a durable PowerDyne Thrust nylon plate and Sonar Demon EDM wheels-a quality MDI recreational wheel loaded with roll and available in eight fun colors. Get your R3 Demons with eight wheels of the same color or mix and match two colors for extra style.