Giant contact stem is a 3d forged 6061 aluminum construction oversized box section stem featuring 8 flip flop adjustable rise requiring fewer spacersfeatures3d forged 6061 aluminum alloy body with oversize box cross sectionoversized 46mm wide 6061 alloy faceplate8rise requires fewer spacers1 18 steerer adapter includedsteel hardwaresizesseven lengths 60mm 70mm 80mm 90mm 100mm 110mm 120mm