The Idea a7OS Hybrid Irons are the best game improvement irons ever made by Adams Golf. The patented gapping technology optimizes each club in the iron set to outperform traditional irons. You'll see increased distance, improved launch conditions and easy-to-hit playability from the entire set. Mid-high launch # 4 and 5 hybrids offer more distance, ultra thin crowns that lower CG, 44 grams of heel and toe weighting to maximize forgiveness, a thin face for increased ball speed and a draw bias thanks to their rounded shaping. The #6 and 7 transition irons feature high launch with increased spin, back weighting and a 4-way cambered sole that maximizes forgiveness and an "H-back" channel vibration dampening system. The #8 through Gap Wedge short irons are versatile and forgiving, have a low and deep CG and feature quad-cavity perimeter weighting for amazing feel.