Black Threaded Flip Top Cap is a single-piece cap with a hinge connecting the body and lid. The flip top cap's body typically contains some sort of finger recess to make it easier for the user to open the cap, and the hinge allows the lid to be closed onto that body. Black Threaded Flip Top Cap is secured, and the peelable pressure-sensitive liner might stick to the container. The lid also has a tiny overhang on the most recent cap, providing an even bigger area for this cap to be opened.