WORLD'S FIRST PLANT BASED EARPLUGS “USDA Certified Biobased* and Biodegradable** Earplugs”. Technical Details *USDA BioPreferred IDs 60599 and 50092**As per accredited third party testing according to EN 13432 and ASTM D6400 standards employing the testing protocols defined and certified therein: ASTM D5338 – Aerobic Biodegradation: 76%OECD 207 – Earthworm toxicity TestOECD 208 – Ecotoxicity Test OECD 302 D – Inherent Biodegradability BioSoft Attenuation BioSoft Datasheet Pinch Fit Attenuation Pinch Fit Datasheet