School
Plastic Geometry Protractor
180 degree semi-circle
14
g
Total plastic weight
Often treated as a disposable item at the end of a school year; low-value plastic frequently missed by sorters.
15%
Recycle probability
450
Years to decompose

Material breakdown
1 components- PS (Polystyrene)14g
Production footprint
Per unit42L
Water to produce
0.17kWh
Electricity to produce
Estimated upstream manufacturing footprint per unit, based on resin LCA averages.
Lower-impact alternatives
- Stainless steel protractorEngraved metal tool that never chips or snaps.0gplastic
- Wooden protractorEco-friendly wood option for geometry needs.0gplastic
- Printable paper rulerUse recycled paper to print tools as needed.0gplastic
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