This 90 Day Challenge High Intensity Interval Training DVD set features 8 discs of heart-pumping exercises designed by fitness expert Mark Lauren. With exercises that target all major muscle groups, this set is perfect for anyone looking to improve their overall fitness. The DVDs are brand new and sealed, ensuring that you receive a quality product that will help you reach your fitness goals.

This DVD set includes English language audio and subtitles, and was released in 2014. It falls under the category of Movies & TV, specifically DVDs & Blu-ray Discs, and is perfect for those interested in Exercise & Fitness. The set features a variety of workouts suitable for any fitness level, making it a great addition to anyone's fitness routine.

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