Environmentally Friendly Recycled Bins. Manufactured from recycled, 100% post consumer, high density polypropylene / polyethylene, these bins come in a complete range of sizes and have all the features of Quantum's standard bins at a more economical price. Quantum Shelf Bins are the industry standard for quality. These durable polypropylene bins feature a molded-in label holder, built-in rear hanglock which allows bins to tilt out for complete access when on shelving. A wide hopper front allows complete access to the contents of the bin. Edges are reinforced for added strength. They are designed for 12", 18" and 24" deep shelf units, racks or standard shelving. Bins are waterproof, impervious to most chemicals and unaffected by grease or oil. Available in Black only.