The BullsEye Seed Tube reduces seed ricochet and improves wear life. This model fits Deere 7200/7300,and 1700 series planters with either a 1/2” or 3/4” sensor eye hole. Deere 7200/7300 and 1700 series (Model year 2006 and before) will also require part number PPM700137 (Pin & Clip kit) for installation. Deere 1700 series (Model year 2007 and later) require PPM700167 (Spring Pin Kit).