These Tree Protectors are made from 50% post consumer recylced plastic. This Tree Protector is made from polyethelyne plastic. It is designed to snap together around the tree, with multiple slot options for small and large trees. The Grow it Now! Tree Protector is designed to protect tender trees from animals such as: mice, voles, rabbits, deer, etc. and equipment such as weed trimmers and lawn mowers. It also helps to prevent sun scald and frost cracking. The Tree Protector is solid white so it repels heat. These Tree Protectors are sold in sets of 4 protectors.