4" deep corrosion-resistant polyurethane bin for use with the Flexi-Bin Cart. Exterior dimensions: 22.25" x 17" x 4"; interior dimensions: 20.25" x 15.25" x 3.8". Includes three long (20.25") and four short (15.25") polyurethane dividers for partitioning the bin to securely hold items in upright positions. 10" deep bin is also available.