This bale bag fits up to a 90lb bale and is the BEST CHOICE for offering TRUE Free Choice slow feeding for all animals. For horses (1000 lb+) you’ll have to refill this bag approximately every 2 1/2 days. Very practical for your weekends away from home. It also works great for larger herds of small farm animals and will reduce your workload! You may only have to refill once a week, depending on the size of your herd.