Mount Twister Poly Closing Wheels to Case IH 1200 or 2000 Series planters with the 6200 Twister Conversion Kit. The 6200 Twister Poly Closing Wheel achieves seed trench closure and breaks up sidewall compaction. A rounded center-ring design maintains the depth of the twisted spikes and makes it effective in a wide range of soil conditions. The Twister Poly Closing Wheel works in minimum till, conventional, strip-till, vertical tillage, and no-till. - Less