Preface: I figured it went without saying, but don't reuse needles unless you're using them for like paint or crafts or something. I'm editing this because the only comment I've received on this object is someone flying off the handle presuming I was reusing needles to inject animals with medicine. Use common sense. Anyway...

We frequently wash and reuse very small syringes (without the needles) for administering oral medication to small animals, and this rack will hold the (needle-less) syringes while they dry. It holds 12 small syringes that are 6mm in diameter or less.

Creality

Ender 3 Pro

No

No

0.2

25%

Print with the "back" side down and it should print fine without supports.