The Original NibbleNet&reg; Double-Nibble 6&rdquo; Deep S/N/S w/ 1.25&rdquo;+1.00&rdquo; Slow Feed Hay Bag by Thin Air Canvas, Inc. Super tough 40 ounce vinyl. Webbing both sides. 3 replaceable straps Holds approximately 15-18 pounds of hay Box X stitched with marine grade UV resistant thread All stainless steel D-rings