Adjustable Binning strips. You can use double sided tape (not included) to attach the plastic binning strip to your shelf. Strips allow for 1/4″ Baltic birch dividers at 1/4″ intervals so you can divide your shelf exactly as you need it. Requires two strips per shelf, sold per inch. 2 3/4″ tall, can be cut down for use is 2 3/8″ tall shelves.