Some thatch is essential to protecting the roots, but too much can literally suffocate your lawn, creating a barrier that prevents moisture and air from reaching the roots of your lawn. If your lawn has excessive thatch buildup, Brinly's 40 -inch Tow-Behind Dethatcher is the tool for you. Perfect for small to medium lots, this premium lawn attachment gently combs old grass clippings, dead roots and other small debris to the surface where they're easily bagged or re-mulched. Need to cross a sidewalk or driveway. A single lever, accessible from your tractor seat, activates the 6 -inch x 1.5 -inch transport wheels. The durable 20 independently flexing tines are 3/16 -inch in diameter and feature an oil-tempered spring with triple coil strength.