Add personality & style to your bike with this precision engineered and machined stem cap and spacer kit. Kit includes:a 3mm, 5mm, 10mm, & 15mm headset spacersa Ultralight stem cap with an integrated 5mm spacera 4 matching aluminum water bottle cage boltsa Black aluminum stem cap bolt Compatibility 1 1/8" top (straight 1 1/8" or 1 1/2" to 1 1/8" taper) steerer tubes only Note: Bolts are for use on water bottle cages only. Never use these aluminum bolts in a structural application. Use the longer stem cap bolt when installing the stem cap Tech Specs Weight: Stem Cap a 12g | Spacers a 3mm - 2g , 5mm - 3g, 10mm - 5g, 15mm - 7g | 4 Cage Bolts a 4gMaterial: 6061-T6 aluminumIncluded: Black aluminum stem cap boltMade in the USA