The Armchair Fitness family of DVDs may be purchased in sets: Armchair Fitness Aerobics Armchair Fitness Gentle Exercise Armchair Fitness Strength Armchair Fitness Yoga Health Two DVDs Three DVDs Four DVDs Copyright © 2006 ArmchairFitmess.com. All Rights Reserved. Contact Information: info@armchairfitness.com or call 1-202-882-0974.