Akro-Mils 30110 Series, 4-inch tall Shelf bins are used for storing and organising inventory items in offices and commercial spaces. They have industrial-grade polymer construction for corrosion resistance, durability and working at temperatures down to -20 degrees F. These 4 inch high, shelf bins nest together when empty or form stable storage units on steel shelving units and pick racks when filled. They feature a wide front opening for easy access to items and small bin cups(sold separately) for segregating the inventory into individual, removable storage compartments and a label area for easy identification of the stored items. Choose from a wide range of these 11-5/8 x 2-3/4 inch (outside length x outside width) Shelf bins, available in blue, green, white, yellow, clear and red colours.