These plastic-free shrub shelters are made from a water-resistant board, which has been coated to give it additional protection. This product is also sometimes used for fast-growing trees. They are designed to last, outside, for at least 3 years - and then will eventually biodegrade. They are suitable for composting or recycling. Supplied as standard in green, flat. They are 150x150x600. Available in 20/100/250/500/box. (Please note: these items may be delivered by pallet, due to the size, please let us know when you order if this is likely to be an issue). There's no need to collect these tree-guards in, they can simply be left in situ to disintegrate. For more information on this product, you can visit www.ecotreeshelters.com