Bottle closure for sales promotion

摘要

A closure for sales promotion comprising a closure shell having the indication of a prize offer on its inner bottom surface and a gasket bonded to its inner bottom surface, the gasket having a center panel portion held half-adhered or non-adhered to the inner bottom surface of the closure shell and a peripheral sealing portion firmly adhered to the inner bottom surface of the closure shell, the center panel portion being completely defined from the peripheral sealing portion by a breakable line so that the center panel portion can be stripped off from the inner bottom surface of the closure shell while leaving the peripheral sealing portion.