Drawer Corner Glide
A quick learner from Double Dresser 6 Drawers says:
November 4, 2011
I am looking fpr the side plastic part that fits into the grove, its help the drawer from sliding out.
Tom from SWISCO responded:
November 10, 2011
Thanks for posting.
Please take a look at our 32-114 Drawer Guide. Compare its dimensions with your sample and see how you think it will work.