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adjustable resistance system

SISTERUNION Pedal Exerciser Bike, mini exercise bikes, Arm Leg Folding Exerciser Fitness Cycling with LCD Monitor and Adjustable Resistance

SISTERUNION Pedal Exerciser Bike, mini exercise bikes, Arm Leg Folding Exerciser Fitness Cycling with LCD Monitor and Adjustable Resistance

Mini Exercise Bikes for Home Use - Get a Convenient Workout Anywhere

Model:ES-8110