Under Desk Bike Pedal Exerciser: The exercise peddler provides excellent low-impact exercise which is perfect for strengthening and toning both arms and legs; the unit helps improve circulation by stimulating the muscles Adjustable Resistance Exercise Peddler: The tension knob can be easily adjusted which allows you to set your own resistance, making this a great option for all Non-Slipping Pads: Four anti-slip rubber pads prevent sliding and protect floor by keeping the exercise peddler firmly in place Dimensions: 16.93 inches in length x 7.01 inches in width x 12.2 inches in height 0