Ear loops and headphones: what they have in common

1. Step 1. Ear loops — is part of — Surgical mask. Ear loops.
2. Step 2. Surgical mask — is made of — Polyethylene. Non-woven polypropylene.
3. Step 3. Polyethylene — is material for — Tetra Pak. Polyethylene.
4. Step 4. Tetra Pak — is made of — Paper. Cardboard.
5. Step 5. Paper — is material for — Loudspeaker. The cone is paper.
6. Step 6. Loudspeaker — is part of — Headphones. Miniature drivers.

Open Evothings