2016 John Deere, 1990, air_drills, Width: 30, Spacing: 7.5", Extended wear seed boot , Smooth gauge wheel, Large Seed (White) Meter roller, Single row spacing , Dual 31 x 13.5 - 15 Hi-Flotation Tires, SeedStar Monitor for Row Crop Tractors, , 30Spacing: 7.5"Extended wear seed boot Smooth gauge wheelLarge Seed (White) Meter rollerSingle row spacing Dual 31 x 13.5 - 15 Hi-Flotation TiresSeedStar Monitor for Row Crop Tractors