Grate Stake System Only One Stake Needed Per Tree For 15 gal. and 24" box size trees **Mega Grate Stakes for 36" box size trees available upon request. The Grate Stake System is a steel stake that fits most tree grates.  Recommend request of "hole alignment template" in advance.  The strap bar is adjustable for any tree height.  The UV resistant vinyl strap is adjustable and allows for natural tree movement.  The Grate Stake is powder coated black. Reusable Promotes a Healthy Well Developed Tree Easy Installation Vandal and Theft Resistant Auto Cad drawings available upon request. U.S. Patent Pending