Up for sale is a new OEM Bambu Labs #FAT003 AMS Hub/Custom PTFE Tube 4000mm White. Comes with free shipping in USA. Thanks! New accounts and/or buyers with fewer than 10 response must message via messaging system to verify shipping address and confirm item before offerding or buying. Failure to do so may result in offer/order cancellation. This protects all buyers, reduces fraudulent claims and ensures item ship out quickly.