Black Rubber Stopper #000 Solid. Top diam. is .472"(12mm). Bottom diam. is .354"(9mm). Height is .709"(18mm).
Approximately 166+ per pound.
Forensics Lab Supply Number 3740101.
Formerly Grau-Hall Corporation dba Grau-Hall Scientific.
NOTE: Unlike some inexpensive imported products, these stoppers are made to standard size and hardness specifications.
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