U-Stake It System Only One Stake Needed Per Tree For 15 gal. and 24" box size trees The U-Stake It System is a screw in auger-type composite stake that telescopes.  It has an adjustable anti-rotational tab and pin device that prevents the stake from turning or becoming lose in the ground.  The strap bar and strap is a molded one piece adjustable system.  Promotes Healthier Trees Easy Installation Reusable Vandal Resistant Auto Cad drawings available upon request. U.S. Patent #'s 6,702,239 B2 & D463,721 S