These Corrugated Tree Guards feature an LDPE construction. This material makes them more pliable than other tree guards. These guards measure 2 inches in diameter and 4 feet in length. Sold in bundles of 20. The first few years of growth are vital to young trees. Use these guards to protect your saplings from animals, weather, and equipment during this critical time. Our Corrugated Tree Guards last up to 5 years. The LDPE material is softer than other types of plastic, so it will not scratch tender bark. The UV-treated guards resist both sun and water. This resistance enables them to withstand rain and watering without deterioration.