The slender neck of soft drink glass bottles is made for a crown cap. Developed specifically to seal carbonated beverages over 130 years ago, the closure technique still stands the test of time. Over the decades, however, caps have become flatter than the original design and standardized into a 21-tooth rim.

The emergence of PET bottles led to plastic twist-off caps that do the same job, without the need of a bottle opener. This alternative allows consumers to re-close the drinks securely, making it a perfect choice for your larger-sized bottles.