The RYGEO Under Desk Mini Pedal Exerciser Mc18 is a compact and adjustable resistance bike designed for rehab and fitness purposes. Made of durable alloy steel in a sleek gray color, this pedal exerciser is lightweight at 5.0 pounds and easy to use with its manual operation mode. With a maximum weight recommendation of 4.62, it is suitable for both men and women to use. The unique design allows for use under a desk or any convenient location, making it a versatile option for those looking to incorporate low-impact exercise into their routine.