Polyester Blend PERFORMANCE MONITOR: Time, Speed, Distance, Calorie, Odometer, RPM & Pulse. MAGNETIC RESISTANCE: Adjustable magnetic resistance provides smooth contactless resistance and is virtually maintenance free. Q-FACTOR: 206mm, Lower Q-factors provide better biomechanical and ergonomic efficiency. This allows the rider to pedal faster and harder more effectively. DEVICE HOLDER: Follow along to your favorite Sunny Health & Fitness training videos on your tablet or mobile device. BOTTLE HOLDER: Stay hydrated to be ready to exercise for extended training sessions. PERFECT EXERCISE BIKE: Endurance Magnetic Indoor Exercise Cycle Bike is pefect for home use and include all the feature you ask for home fitness.