Need more storage space for your loose and small items? These durable plastic totes fit securely on all Kargo Master Shelving Units in a steel 4 tote shelf cabinet to create additional organized storage spaces that would've otherwise been wasted. These plastic totes are custom fitted to stay securely in place to prevent any displacement even on a bumpy road. If you have a 42" shelving unit, with a drawer cabinet and considering using totes, you may want to consider adding this tote shelf cabinet to have extra storage space.