The Advance Tabco TA-120 allows for customization of CU-series shelf legs, providing a 6" overhang on one side, which can be specified for either the front or rear. This modification enhances accessibility and usability for various shelving configurations. The pricing is per shelf, and for multiple tier shelving, simply add one "each" for each level. Tailor your shelving to meet specific needs with this versatile modification option.