For sale I have a sunflower disc that is 40 feet wide.  The rear disc's measure 24".  The sunflower disc features four section flexibility for unmatched ground hugging capabilities.  The unique linkage system allows each half of the unit to function independently not only form side to side but also from front to rear.  It will provide you with unmatched performance in rolling terrain or terraced ground and provide the extra protection needed in rocky soils.  This disc is in like new condition other than some fading of paint.  Was told the disc had been only used on less than 2,000 acres and less than that and it shows...still most of the stickers on disc's axles and so on.  If you have any questions feel free to call 6202726365