Breathing Resistance Training Mask for Sports and Workout

With many levels of resistance, this training mask is perfect for those working out and trying to get their gains! Great for all sports such as exercising, running, jogging, weight lifting, and all sports.Features: Improve lung capacity Made from high quality ultra-durable material Helps burn more calories during workout, exercise, and jogging. Suitable for jogging, exercising, running, weight lifting, and all sports. Decrease Workout Time: Less oxygen, harder working muscles, Faster Results! Fabric/Material: PO Dimensions: 2.0 inches (H) x 2.0 inches (W) x 2.0 inches (L) Weight: 2.0 ounces