Disposable shaver with counter and method of counting and quantitatively comparing the useful life of disposable shavers

摘要

A disposable shaver having a shaving head and handle equipped with blister bubbles positioned along the handle of the shaver. The blister bubbles are depressible from convex to concave and are provided to count the number of times the shaver is used. The method comprises the use of the inventive shaver to compute the useful life of a particular brand of disposable shaver.