The Channel /ADJ4 Accessories - Adjustable Shelves, weighing 9lbs (ITEM WEIGHT ONLY), are a crucial addition to any modular shelving setup. Specifically designed for versatile storage solutions, these adjustable shelves are compatible with caster conversion kits, which come in a set of 4. It is essential to note that the caster conversion kit must be factory-installed, ensuring optimal performance and stability. This product is geared towards industries requiring adaptable and reliable shelving options, including retail environments, warehousing, and commercial kitchens. The unique feature of adjustable shelves allows for customized spacing, accommodating a variety of storage needs and maximizing space efficiency. The Channel /ADJ4 is designed to integrate seamlessly with existing shelving frameworks, offering a robust and lightweight solution that supports operational flexibility. With its straightforward installation requirement and essential weight specification, this product serves as a practical enhancement for storage systems aiming for both efficiency and adaptability.