Commercial strength rubber supports promote root development and installs in just minutes! Tree Saver stakes are good for root development because the straps are flexible allowing the tree to slightly sway naturally. This signals roots to spread for the correct stability as the tree matures. Easy installation with elastic supports and adjustable hook ends. Allows trees limited sway for better root development. Labor saving, installs quickly. Hooks can be removed from stake for trimming. Bulk kits consist of higher density elastic supports. Bulk Kits - Enough for 10 trees. Heavy duty. 30 each: straps, stakes and hooks. Tree saver, 3/8", 6 ft lines, 16" stake (2 - 3" in dia).