FSA OS 99 3D FORGED AL7050 Carbon Stem: 31.8mm x 60/70/80/90/100/110mm x 1-1/8" 6deg (Red or Green) 1pc on this order, you can select from Red/Green color and 4 length sizes Material: [Stem body] 2014 aluminum; [Middle Faceplate] wrapped with 3K carbon fiber Color: Red/Green; Length: 80/90/100/110 mm Bar Diameter: 31.8 mm; Rise: 6 degrees Steer Tube Diameter: 1-1/8 in (28.6mm),