Product Description The Precision Headset Spacer Kit by Wolf Tooth Components consists of four spacers - one each with a 3 mm, 5 mm, 10 mm and 15 mm height. Specifications:Compatibility:1 1/8"Sizes:3 mm, 5 mm, 10 mm, 15 mmTechnical Information:Material:aluminium (6061-T6)Features:for straight 1 1/8" steerer tubes or 1 1/8" - 1.5" tapered steerer tubeswith engraved size indicationprecision-machined and anodisedset with four different spacersMade in the USAColour Index:nickel:shiny silverManufacturer Numbers:black:SPACERBLKKIT1silver:SPACERSILKIT1red:SPACERREDKIT1blue:SPACERBLUKIT1green:SPACERGRNKIT1nickel:SPACERNIKIT1orange:SPACERORGKIT1purple:SPACERPRPKIT1gold:SPACERGLDKIT1Contents:1 x Wolf Tooth Components 3 mm precision headset spacer1 x Wolf Tooth Components 5 mm precision headset spacer1 x Wolf Tooth Components 10 mm precision headset spacer1 x Wolf Tooth Components 15 mm precision headset spacer Weight: black: 17 g (2 g + 3 g + 5 g + 7 g) Manufacturer: Wolf Tooth Components 6400 W 105th St Bloomington MN 55438 USA info@wolftoothcomponents.com Distributor: Cosmic Sports GmbH Leyher Straße 47 90763 Fürth Germany info@cosmicsports.de