Specification Color Chrome blackDiameter 16mm 15 3mm 14 4mm 11 3mm 16 5mm 9 8mmMaterial ABS PlasticFits For reference For Harley Davidson Twin Cam Dyna 1991 2013 Note Require a few drops of silicone on stem when installing1 We provide clear pictures measurements where possiblePlease check as much as possible to make sure the item is the one that you need 2 Please allow 0 5 1 inch difference due to manual measurement 1 inch 2 54cm 3 The color of the actual items may slightly different from the listing images due to different computer screen 4 Instruction is not included professional installation is highly recommended Package Included 1 X Set 76 pcs