Boredom breaker/slow feeder which is great for reducing intake whilst occupying a diet restricted horse. Stops hay blowing around the field or getting muddy. Conical shape rolls in a circle, not blowing under a hedge or fence. Contains almost as much hay as a haynet. Doubles up as a pole block, underside of pole height would be 60cm - and it's already in the field. Ultra tough stubbythene moulding. Horse feeding holes - 7.5cm, Pony feeding holes - 5cm.