Derby Originals Quik-Fil 48&rdquo; Patent Pending Slow Feed Poly Rope Hanging Hay Net with 2x2&rdquo; Holes Unique patent pending flexible ring makes filling the net easier. Our flexible rope ring has been tested to be safer for your horse. No more solid metal ring! Hand knotted openings - size varies from 2.5 X 2.5 to 3 X 3 Generous 48" durable polyester. Bigger than the most slow feed hay nets. Holds over half a bale of hay. Mildew proof.