Continuous Thread (abbreviated CT) is a type of finish found on both glass and plastic containers where the threads are wrapped around the neck of the container continuously. These types of containers require corresponding continuous thread caps. C.L. Smith offers many different sizes and colors in continuous thread closures. This type of closure is usually lined with a paper, plastic, foil, film or combination liner in order to provide the best seal for the product within the bottle to maintain the product integrity and avoid leakage.