Closing Wheel Spike Ring, 16 teeth, made from Ultra High Molecular Weight Poly Plastic (UHMWPE), with high wear resistance, high anti-impact strength and high anti-corrosion. Prolongs life several times than traditional rubber one. Fit John Deere or Kinze Closing Wheel Nylon Rims. 

Outer Diameter : 13-7/8"

Teeth thickness : 20mm