PolyStash v1.0 is a release file of the Minecraft resource pack PolyStash v1.13 - MC1.20.4, made for Minecraft 1.16.3, 1.16.1, 1.16, 1.16.5, 1.16.4, 1.16.2. It was published on May 2, 2021 and is 7.5 MB in size. For the full description, screenshots and every other version, visit the PolyStash v1.13 - MC1.20.4 resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.