The Tamper Evident caps with a drop band plug are a perfect solution for beverages that require tamper evident seal. This 28 mm black polypropylene (PP) plastic tamper evident closure has smooth top and ribbed sidewalls for a strong grip. This cap is linerless. When cap is unscrewed from the bottle, the tamper-evident band will break, alerting you to compromised product. This closure is a great choice when packaging liquor/spirits and other carbonated beverages. Its’ patented wing tamper evidence system provides reliable, consistent performance.