The Wolf Tooth Precision Headset Spacers prove the smaller details matter when tricking out your bike. Don't stack spacers, buy the right size instead! Introducing the mate to our beautiful stem caps, the Wolf Tooth headset spacers are precision machined right here in Minneapolis. They come in your favorite anodized color options and in the lengths of 3mm, 5mm, 10mm, 15mm, 20mm, 25mm, and 30mm so you don't have to stack spacers anymore. Length is laser marked on the end so you don't have to guess. Available in a rainbow of colors these are the perfect way to customize your ride. Wolf Tooth Precision Headset Spacers Compatibility 1 1/8 top (straight 1 1/8 or 1 1/2 to 1 1/8 taper) steerer tubes only Wolf Tooth Precision Headset Spacers Specifications Kit includes: 3,5,10,15mm Weight:  3mm - 2g, 5mm - 3g, 10mm - 5g, 15mm - 7g, 20mm - 9g, 25mm - 11g, 30mm - 13g Material: 6061-T6 Aluminum Made in the USA