Bambu Lab Hardened Steel Extruder Gear Assembly X1 and P1 Series

4kg spools are available to purchase on backorder. In most cases, these will be made-to-order in 3-4 weeks.

For filaments with a 4kg option, please add to your cart and proceed with checkout.

If you need 4kg spools more quickly, please email contact us and we'll see what we can do to accommodate that.