The adjustable speed and resistance makes it a great product for progressive exercise to strengthen your arms and legs. It provides low impact exercise to increase strength and flexibility, promote blood circulation and is versatile for both upper and lower body. It is recommended for active or passive training and can be used for rehab as well as for fitness. It has a lightweight compact design, adjustable speed, a 15-minute timer switch and a multi-function LCD display readout scan, time, count, total count and calories burned. There is a non-skid mat included. Accompanying instructions must be read prior to use.