The Aticap XL is a sanitary drip tip protector that doubles as a glass protection band. The Aticap XL is designed for wide bore drip tips such as: The Baby Beast, the TFV8, and the TFV12. The XL is the perfect fit and is compatible with most other 5/8" drip tips. Our main goal is to prevent debris and other foreign particles from entering through the drip tip and contaminating flavor. It's an added bonus that the Aticap has a thick durable glass protector attached for a simple two in one design.