Heavy-gauge steel Tomahawk Tree Stabilizers eliminate need for above-ground staking and simplify deep root watering and fertilizing. Promote healthy root growth and trunk tapering. Notches allow guying in extreme wind. Stabilizers are available in 24-, 32-, and 42-in. sizes to accommodate root balls 16 to 36 ins. deep. Install 2 units into ground adjacent to root ball on either side of newly planted tree. Stabilizers come with installation tool.