The Metro SML21 is a high-quality shelving unit leg designed for versatility and stability. This 21" SmartLeverâ„¢ leg features an innovative design that allows for easy height adjustments, ensuring optimal shelving configuration. Constructed for durability, it supports a variety of shelving applications, making it ideal for both commercial and residential use. The package includes one SmartLeverâ„¢ leg, providing a reliable solution for enhancing your shelving system.