Derby Originals Natural Grazer Slow Feed Hay Bag with Warranty Slow Feed opening 1.75" x 1.75". total 228 opening 372 Cross stitches for extra support and durability Extra large size holds approximately 3/4 of a bale Every bag has handles on the top and bottom for easier lifting Mildew proof nylon. No hardware to avoid any hoof injury Patented with 1 Year Limited Manufacturer's Warranty