Designed using a heat resistant material that will not distort when exposed to heat. A durable rubber ring is used at the bottom of the haynet instead of metal to make this safe for your horse after steaming. This haynet is ideal for greedy feeders, those on a diet or horses that need their ad lib forage controlled. Individually crafted with small holes to slow hay consumption and trickle feed your horse or pony, ensuring better digestion and less waste on the floor. 2.5cm holes.