Protect your trees with these unique 2-ply corrugated HDPE resin guards. The white exterior reflects heat and is vented for breathability, keeping your seedlings cool year round. The black inner layer is treated with UV protectants for long life. 3" diameter guards are slit for easy application. In three lengths: 24", 36", or 48". Inspect annually for proper fit. 100 or more will require oversized shipping or motor freight delivery, please call for quote. Use with Tree Gurad Zipper TPZ. Sold in bundles of 2.