Zilco Super Slow Feeder Hay BagStrong polypropylene net with 17oz canvas backing and stop straps. Helps to prevent gorging and extends the horse's feeding time more closely reflects their natural grazing habits and is much more beneficial to the way their digestive systems are designed. 3cm x 3cm holes is designed for even more controlled grazing Two straps over the top to help prevent the horse from eating directly out of the top of the bag Measures: 67cm x 60cm