by taking the handle off a pet milk container you save on average 25 of material in the manufacturing process. a polypropylene handle is supplied to customers to be reused potentially thousands of times.  the tips of the two prongs on the injection molded handle are over molded in a thermoplastic elastomer much like that you would find on the handle of a screw driver, this allows them to grip and hold firmly up to and over the weight of 6 pints of milk. source httptivesy.blogspot.in201008starpackcompetionentryforinnovative.html
