BIQU PLA-HR Flexible 3D Printer Filament Specifically for Printing Airless Basketballs, 1.75mm 1KG Spool (2.2lbs), Flexi Tough Filament Compatible with Most FDM 3D Printer (Black)

supposedly this stuff works as well:https://www.amazon.com/Flexible-Filament-Specifically-Basketballs-Compatible/dp/B0DJ959284/ref=sr_1_41?crid=319J9QW50PU0&dib=eyJ2IjoiMSJ9.2NB-x-agsiJwndtVFBAKlfmCMAKGB_r9sdubE9wvjwneGg1iJ80o8UfEvFnx4hJIvrgy-Q6qR6qESmN1UGSRc9NFLXp4aitCNiV0cNJdBRKz-E07ZI_7b0-00t9WofvilJPX77OcnK79K_dT5aLennRCF9Rbzy3vNnlKCTJBaEEipAfsF44ZLbNjQzzXcTQBZoIyYKs7aCi7kHFDW4gazEbjj0Q-8IIY6D6G0Lp452tXZI4sZ_xJR3Pvc-isicXSbojrZBc9Wyq_adwKPglBSfyd4prc9UPEMw2xN6kO4RU.xyjMewX6RGSF1L4-k3w3kbinIpva4M_8LSyGe-G7G3U&dib_tag=se&keywords=airless%2Bbasketball&qid=1782137725&sprefix=airless%2Caps%2C135&sr=8-41&th=1