Sift! Sort! Store! Pull out any brand of puzzle from your stash and Cobble Hill's six Stackable Sorting Trays to get started! Empty your bag of puzzle pieces into our unique sorter and sift, sift, sift away to remove any excess puzzle dust. Then start sorting your pieces by colour, shape, or border to aid in assembly. When you need to take a break simply stack the sorting trays that neatly nest together. They'll be waiting for you when you're ready to get going again!