Brinly PA-40BH Tow Behind Plug Aerator, 40-Inch Aerate and relieve compacted soil: 24 heat-treated, 16 ga. Steel plugging spoons penetrate compacted soil and remove up to 3-inch plugs of soil, allowing water, seed, and fertilizer to reach the roots. Brinly plug design is narrower with sharpened ends to allow easier penetration and require less weight. Long-lasting construction: durable, all steel design with Fully-Enclosed Weight tray holds up to 150 pounds of any type of extra weight for maximum soil penetration and depth. Tines are heat-treated for strength. No flat wheels for durability. Easy transport: for crossing drives, walks and rooted areas, Brinly plug Aerator includes a single transport lever that can be reached from most tractor seats to engage transport mode using the 10" Never flat rubber tread tires. Works safely on turns and uneven terrain: three independently rotating, Welded Tine sections minimize turf damage during turns and help provide consistent penetration on uneven ground Universal hitch: a single pin, universal hitch easily attaches to every lawn tractor and most ztrs and ATVs. Easy to maintain: each plugging spoon is individually serviceable, allowing for quick and easy replacement in the unlikely event of a Tine breakage. Simple assembly: includes assembly skin pack with parts break down and full pictorial instructions. Full Warranty: Brinly products are covered by a full 2-year Warranty and 180 years of service. Parts orders can be ordered online at our website or by calling our Toll-Free Number 877-728-8224.