Ampro Leather MKII Large Maize Bag - Blue/Red. Classic Cow hide leather maize bag Filled with granules and softened with inner foam lining to help protect the boxers hands, when punching. This small style maize bag is specially shaped to allow for a variety of shot's. Ideal for improving a boxers head movement. Large 65cm size for professional gym use in approving punching accuracy and combination speed.