A VERY GOOD IDEA

Roller skates; In-line roller skates; In-line skates; Roller and ice skates; Skating boots with skates attached; Ball bearings for in-line skates; Ball bearings for roller skates; Roller-skates; Athletic protective elbow pads for skating; Exercise equipment for lateral movement in a skating motion; Sports equipment, namely, inline roller skating wheels at the end of a crutch-like frame