Allowing you to SIT and get fit, the WIRK Orbit Strider's patented 360° hinges let you move your lower body in all directions while seated! Designed to keep your knees level and your feet moving, this fitness strider lets you burn calories, improve circulation and tone your hips, thighs, hamstrings, calves ... sneaking in a low-impact workout while you work on a crossword, catch up on email or watch TV. Large, textured footplates help ensure your feet stay securely in place, and the foldable frame and carrying strap make it easy to take your workout anywhere. Metal, plastic. Compact strider measures 18" long x 14 1/4" wide x 24 3/4" high. Weighs 11 lbs. Wipe clean. Some assembly required. No express shipping. Allow 2-3 weeks for delivery.