Assertion: bobbin | /r/HasAspect | two flat sides
Facets:
Source sentences:
text: This bobbin has two flat sides and is available in both plastic and metal.
text: This bobbin has two flat sides and is available in aluminum, plastic, and as a Magna-glide core.
text: This bobbin has two flat sides and is available in metal, and as a Magna-glide core.