The Fitter Sitter The new Fitter Sitter gives you a lower back workout while sitting at your desk or watching TV. You can increase your heart rate, exercise your legs, and burn calories while sitting down. The Fitter SItter can be used my young and old alike, and is especially useful for the elderly and those who don't want to walk in bad weather. Product comes with it's own carry bag, instructions and a booklet to record your workouts