Here are some measurements and attatchments of two designs. A standard round bale of hay measures 456 cm circumference130 cm high these are approximate measurements. They would have to be made from a strong material in picture 1 or a strong nylon webbing/netting in picture 2. I would require a sample of each design to test. If you think you could make this specification please get back to me with your thoughts and when we have acurate size could you give me a costing of manufacture and shipping. Warm regardsCountry:United Kingdom