Top vials da iyakoki suna da sauƙin amfani kuma ba zasu buƙaci kayan aiki na musamman ba. Tsarin zane na musamman na musamman yana samar da ingantaccen hatimin, yana hana ruwa. Ana samun vialm thread a cikin 8-425 (8mm), 9-425 (9mm), 10-425 (13mm) 1.5ml vials da 13-425 (13m) 4ml vials.
