30 Pcs 3D Printer Nozzle Cleaning Kit, 0.4mm 3D Printing Nozzle Needles, Stainless Steel 3D Printer Nozzle Cleaning Needles, 3D Printer Cleaning Nozzle Cleaner Needles for 3d Printing Accessories

These are basically 0.4mm acupuncture needles as far as I can tell (but not sterile), however they work surprisingly well as 3D printer cleaners.I uploaded a photo showing the fit in a 0.4mm nozzle tip, and as you can see its excellent, the whole needle is well made and the tolerance on the diameter is excellent.The price is good, and less than I can buy acupuncture needles for, and when you need to complete a print but have some burned in filament stuck in the nozzle having something you can stick int here to help clear it is incredibly handy.My only minor complaint here is that the top part of the tube they are stored in is a royal pain to get the top back onto as it doesnt want to go through the slot, you need to either bend that backwards, or cut it off to save your sanity.Overall.. a really decent set of cleaning needles.

Cheep as chips , used them twice up to now to clean my AnyCubic 3D printer.But also played a great prank on my son , he had pains in his leg so got them out with a small toffee hammer and said I had just taken up acupuncture .. he forgot about his pain quick.