YYFITT Basic Foldable Fitness Exercise Bike with 16 Level Resistance, Countdown Exercise Monitor, Phone/Tablet Holder and Hand Pulse for Home Use"Count Down" Feature Exercise Monitor shows Pulse Speed Time Distance (Miles) Calories helps you track the fitness workout more easily. A brand new 16 level tension control system offers precise adjustments. It fits user's leg length start from 73cm with safety "S" arc design is easier for seniors people to get on and off the exercise bike Compact folding design with built in wheels. It can be folded up for easy storage or transport indoor Heavy Duty