A chasing-arrows triangle around the numeral 7, meaning any other plastic.
The numeral 7 means none of the first six. It is a residual category rather than a material, which is why it tells a sorter almost nothing and a consumer even less.
Covers plastics other than the six named resins, and multi-material items, under the ASTM D7611 coding system.
Contexts: Packaging
A residual category rather than a material: two items marked 7 may have nothing in common, which is why the code cannot guide either sorting or disposal.
Contexts: Packaging
Three arrows chasing one another around a triangular path, enclosing the numeral seven at the centre.
Both are built from triangles, arrows and number like forms, and both are used in packaging contexts.