Specification Color: Silver Materials: metal, plastic, ABS Functions: heart rate, movement program, calories, speed, time and distance. Resistance adjusting method: self generating stepper Scope of application outdoor, family, office Packing size: 42x20x32cm Weight: 4kg Feature 1. This small stepper is suitable for families, companies, outdoor! 2. Variable resistance adjustable tension knob for custom workouts 3. Suitable for anyone, especially for the elderly! Package includes: 1 x Mini Exercise Bike 1 x Screw Set 1 x Manual.