Dumb-bells; Skis; Surfboards; Trampolines; Appliances for gymnastics; Baby gyms; Bags especially designed for skis and surfboards; Balance boards for improving strength, toning, conditioning, balance, and proprioception; Body-building apparatus; Body-training apparatus; Chest expanders; Elbow guards for athletic use; Exercise treadmills; Exercise equipment in the nature of exercise bands, training bars, rowing machines; Hang gliders; Knee guards for athletic use; Shin guards for athletic use;...