(2023-04-07, 9:15)Vito Tarantini Wrote: https://www.bricklink.com/v2/catalog/cat...01#T=C&C=7They do exist for a long time!
https://www.bricklink.com/v2/catalog/cat...D#T=C&C=86
https://library.ldraw.org/official/2852
https://library.ldraw.org/official/1517
If you're looking for them in Studio, they are in my pneumatic parts pack available here: https://philohome.com/studio/packs.htm