Dumbbells; Trampolines; Body-building apparatus; Body-training apparatus; Chest developers; Chest exercisers; Climbers' harnesses; Exercise hand grippers; Knee guards for athletic use; Pull-up bars; Spring bars for exercise; Vibrating apparatus used in fitness and exercise programs to stimulate muscles and increase strength and physical performance; Waist protectors for athletic use; Waist trimmer exercise belts; Wrist guards for athletic use