These boxes are made of heavy duty one-piece industrial plastic that is rust, waterproof and corrosion-resistant; Reinforced side ribs add strength and prevent spread; Each storage box is easy to clean and can be used indoors or outdoorsStackable plastic bins maximize storage space, and extra-wide stacking shelves provide stability, save space, and prevent spills. Lidless open design allows you to easily see and access what's inside each compartment without taking them apart.Multi-purpose shelf boxes are great for classrooms, garage storage, food storage, craft storage, bathroom, kitchen cabinet organization, and closet storage; Suitable for storing cosmetics, office supplies, small toys, kitchen utensils or hardware.Usage: First, align the latches and slots of the two boxes and press down to assemble left and right.
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