Thomson Aluminum Headset Spacer Pack Add some bling to your ride The name Thomson is synonymous with high-level precision, and expertly-designed and machined components. The Thomson Aluminum Headset Spacer Pack is an excellent way to add a splash of this precision to the cockpit of your favorite bike. This lightweight aluminum headset spacer kit features 1 each of 5mm, 10mm, and 20mm spacers, letting you dial in the ideal stem height. And, as you've come to expect from most Thomson products, these spacers are made in Georgia and are machined to precise tolerances. Ranging from a measly 4 grams for a 5mm spacer to 13 grams for a 20mm spacer, these spacers are as feathery as they are functional. Features Pack of spacers includes 1 each of 5mm, 10mm, and 20mm spacers Precision-machined aluminum construction for lightweight durability Ultra lightweight ranging from only 4-13 grams per spacer Specifications Weight4g (5mm), 8g (10mm), 13g (20mm)Material Aluminum | Thomson | Aluminum Headset Spacer Pack Black