Sold in sets of 2 which is enough for 2 wheels.
Works with 2.2 or 1.9, SLW or DH hubs.
Great for cars that need extra width such as the LCC or Bully or for adjusting the width less than the next hub size will give.
Brass Hub Spacers: These are sold in pairs which is enough for two wheels
3mm spacers weigh 11.0g/pair
1/4" weigh 22.5g/pair