This is a complete net that will fit a 6 foot high by 5 foot wide (diameter) round hay bale. It has 4 inches holes which will allow your horses to eat without making a mess of the whole bale. Horses are known to graze just about 24 hours a day, 7 days a week. This is not a slow feeder net and should not slow the horse down. It just helps of keep the bale intact. It will help to eliminate waste because it keeps them from pulls out big chucks and most of it falling to the ground where most of it gets wet and stomped. The hay net feeder is made from #36 commercial white nylon netting. Each strand is over 350 pound test. You will save enough money very quickly to cover the cost of the net. The net is reusable over and over again. How many times you can reuse the net will depend on your horses but the one we are currently using has been on 5 or 6 bales and I can't see any wear at all.