Jobe's 16-4-4 Tree & Shrub Fertilizer Spikes (15-Pack) blend High carbon stainless steel for

High carbon stainless steel for years of trouble-free performance

Wheel ratchet is easy to use and creates a firm comfortable fit

Also includes contour air control handle

Rubber overmold wrapped handle provides added grip and comfort

The seat also has color-matched bumpers and hinges

Jobe's 16-4-4 Tree & Shrub Fertilizer Spikes (15-Pack) blend High carbon stainless steel forFertilizer spikes specially formulated for all deciduous trees and shrubs. Insert around the tree's drip line, and let the rain do the rest. Apply in early spring and late fall for best results. Easy to use, no wasteful runoff, no mess, and odor free. Slow release formula. A single application can feed for up to 90 days.