The Bucket Stacker is a molded plastic small parts organizer tray, in yellow, designed to stack inside of most 5 Gal. buckets Equipped with 4 compartments, as well as a molded center handle, you can stack up to 4 Bucket Stackers in one 5 Gal. bucket, or use them as a mobile small parts tray. The Bucket Stacker holds not only small parts and tools, but also such things as sewing accessories, craft supplies, office supplies and small gadgets.