This cap has a ratchet-type band mechanism. Depending on cap type, the band remains either on the bottle finish or on the cap , indicating that the bottle has been opened.
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12 Uni-Lok Band Split E (for pouches)Beverage、Seasoning & Condiment、Toiletry -
Uni-Lok (for plastic bottles) 25, 30, 40 boreToiletry -
Uni-Lok (for pouches) 12, 14, 21 boreBeverage、Toiletry