Haixing stackable storage basket with wheels is made of durable PP material.4 different sizes fit practically anywhere and offer plenty of room for all those things you need to keep close by without taking up too much room in your bedroom, kitchen or closet. These baskets offer seamless storage that can suddenly make your house or apartment feel a whole lot neater and cleaner. Easily nest when not in use for maximum space utilization and its integrated handles allow you to move them around with total ease. The wheels allows you to move them easily when is full of stuff inside.