Nista Mexican Double End Bags are designed as an optimal training tool for practicing techniques and sharpening your reflexes to become a more fundamentally sound boxer. Practice your hand eye coordination while elevating the speed of your blows. The genuine buffalo leather and welted seams ensure maximum durability against the most intense training sessions. These bags take things a step further from the traditional double ends, by allowing for a greater array of punches and strikes in the arsenal, including "upstairs" and "downstairs" combinations.