28 Scooters, skateboards, long board surfboards and skateboards, in-line roller skates, skateboard wheels, skateboard trucks, scooter wheels, scooter trucks, athletic protective pads for skateboarding and bicycling, elbow guards for athletic use, knee guards for athletic use, knee pads for athletic use, leg guards for athletic use, shin guards for athletic use, hand pads for athletic use, wrist guards for athletic use, mouth guards for athletic use, skateboard and bicycle ramps, skateboard and bicycle rails