Assertion: lobster clasp | /r/HasProperty | fastener
Facets:
Source sentences:
text: The lobster clasp, so named because of its similarity to a lobster claw, is a fastener held closed by a spring.
text: A lobster clasp, also known as a lobster hook, lobster claw, trigger clasp, or bocklebee clasp, is a fastener that is held closed by a spring.