(4) stainless steel tridekon crop dividers with air lift option. they have diverters that extend out the sides to keep crop away from tires. i also have the tridekon hydralic jack avaiable as well for conecting to mounts to lift sprayer to change tires. these are the wide dividers to part the crop for a factory set of tires on a JD 4830. i have all mounting brackets for a JD 4830 and brackets for apache 790. these are in excellent condition and no dents always stored indoors. reason for selling is that I no longer use them.