the flexible bag 60 compresses with the spring 50 since the metal spring 50 is hermetically sealed inside bag 60 it will not come in contact with the instantaneous adhesive 70 therefore the instantaneous adhesive 70 will not be deteriorated from contact with the metal spring 50 during storage or use one alternative embodiment of the present invention is shown in fig7 and 7a in this embodiment the spring 50 is coated with an inert plastic material such as polyethylene the polyethylene coating 52 serves to seal the spring 50 from the surrounding instantaneous adhesive 70 the coating can be achieved by known methods such as vapor deposition or immersion therefore the bag 60 can be eliminated since the bag 60 is eliminated the slits 39 in skirt 38 and the slits 44 in skirt 42 are also eliminated therefore skirt 38 is renumbered as 78 to show a skirt without slits similarly skirt 42 is renumbered to 82 to show a skirt without slits in all other aspects this second embodiment is the same as the first embodiment disclosed in fig1 through 6 another alternative embodiment of the present invention is shown in fig8 in this embodiment a different type of spring 54 is used the spring 54 is made of anti corrosive metal or alloy one example of such metal is stainless steel other examples of anti corrosive metals which can be used are chromium nickel titanium molybdenum etc either alone or in an alloy combination the anti corrosive metal protects it from reacting with the instantaneous adhesive 70 and therefore no bag 60 is needed and no polyethylene coating 52 is needed once again the bag 60 and the slits 39 and.