The Metro SMB42 is a SmartLeverâ„¢ 42" Cross Brace Kit designed to enhance the stability and strength of your shelving unit. This kit includes two durable cross bars and a complete set of cross bracing, along with all necessary hardware for easy installation. Ideal for maximizing load capacity and ensuring safety, the SMB42 is perfect for both commercial and residential use, providing reliable support for your shelving needs.