Quantum Storage Systems HNS200GN Hang & Stack Bins, with Two 12" Rails and Six Bins, 4-1/8" W x 5" D x 3" H, Green Bins can hang or stack securely Two 12 inch Will not rust or corrode Inner dimensions: 4-3/8" x 3-7/16" x 2-13/16" Storage system that is ideal for mounting to any wall surface