resulting from accidental application of excessive force to disengage the closure arms 4 and 6 respectively define inner surfaces 12 and 14 which are adapted as shown in fig4 for disposition adjacent each other when arms 4 and 6 are located in stacked disposition surfaces 12 and 14 define on the portions thereof adjacent to free ends of arms 4 and 6 a locking assembly comprising a male snap lock element 16 which projects upwardly and defines at its end an increased diameter head 18 head 18 is laterally enlarged to frictionally engage the lateral walls 20 of the longitudinal slit comprising female snap lock element 22 thus locking engagement is achieved by the application of finger pressure to the respective free ends of arms 4 and 6 adjacent snap lock elements 16 and 22 though snap lock elements 16 and 22 have been illustrated in position adjacent respective arms 6 and 4 it is to be understood that this disposition may be reversed within the scope of the present invention thus the foregoing description and accompanying figures should be considered as illustrative rather than limitative of the present invention the locking assembly of the present invention includes a means for disengaging snap lock elements 16 and 22 comprising a longitudinal extension 24 disposed adjacent female snap lock element 22 as illustrated clearly in fig4 thus disengagement of the snap lock elements may be accomplished by applying parting pressure against extension 24 to pry it away from arm 6 while securely holding the remainder of closure 2 in the opposite hand the snap lock elements will disengage upon the application of moderate force to permit the removal of the secured bag from closure device 2 referring further to the figures closure device.