? Get Sexy Abs in Just 8 Minutes A Day: Syosin magic BB is scientifically designed to combine 10 muscle-burning exercises in 10 minutes a day in one amazingly effective machine. ? Durable Steel Material & Dual-Action Resistance: Covered with soft foam padding for added comfort, provides stable grip on smooth floors. And power-assisted rebound system provides resistance & support in both directions, maximizing results & minimizing strain. ? Customize Your Workout: Customize your routine with 3 resistance levels. Burn calories & firm up while you're sitting down. ? Ergonomic Design & Bonus: Its sturdy and ergonomic design will help eliminate back and neck strain often associated with crunches. Our products will come with a user instruction! ? Portable and Compact: Compact size makes it convenient to carry. You can easily store it in small spaces and take it out daily. Ideal for home and gym use.