Slow Feed Hay Bag with Newly Designed Super Tough Bottom by Derby Originals Slow feed openings are 2" X 2" Made of heavy-duty 1200D nylon with 108 cross stitches Velcro top closure keeps him from eating out of the top of the bag; the top bull snaps also help provide further closure Top hang straps are fully adjustable and replaceable; adjustable bottom strap with bull snap helps further stabilize the bag, if needed. Easily holds 2 flakes of hay and is perfect for use in the stable, in the trailer or at a show; bag measures 25 x 21 x 7