What Do You Do With These?

I could only imagine for what use plastic inserts would be until I clicked the link relieved to see it is a company that makes plastic gears etc for machines. Heh, maybe a little less imagination would be better or at least a little less worldly knowledge to keep my mind from immediately going into the gutter. This company boasts the largest inventory of ready to ship plastic gears and sprockets (wasn't that a SNL skit?) for your machines. Go ahead and check it out, let your imagination run wild.