Knowles - Model 30, 34 and 38 - Wheel Mounted Spring Tooth Harrows

2` x 2` Tooth Cross Bars. Size of Tooth-1-3/4` x 5/16` x 39`. Heavy Duty Tubular Tongue and Frame. Single Wing Support Tire on Each Wing. Variable Length Tongue insert for Each Width. Dual 12.5L x 15 8-Ply Tires for Added Flotation. Wing Sections are Easily Moved to 90 degrees for Transport. Depth Control Levers. 23` Tooth Bar Spacing. Center Mounted Jack Stand. Heavy Duty Replaceable Front and Rear Wear Shoes. Heat Treated Teeth with Holes for Replacement Points.