The "Reebok Stay Ball Core Workout" DVD is a fitness program focused on core and abs exercises using a balance ball. Produced by Reebok, this workout DVD is designed to help individuals improve their strength, stability, and balance through a series of exercises targeting the core muscles. The DVD is sealed and brand new, making it a great option for those looking to enhance their fitness routine at home with guided workouts specifically tailored to improve core strength and stability.