Description Ultralight CNC machined 6061 aluminum spacers for fine-tuning stem height 1 inch includes one each 1, 3, 5, 10mm spacers 1-1/8 inch includes one each 3, 5, 10mm spacers and two each 1mm spacers 3rd party web sales must be an Authorized Dealer TECH SPECSID1-1/8″size(2) 1mm, 3mm, 5mm, 10mmcolorblackpackageset/5