These bins are great. They are made of plastic and are very durable. They have 3 openings at the top so you can put in various items. We use one for soda bottles, one for milk containers, and the last for papers. It is so convenient for all our recycling. It is a perfect height and easy to put in the bags. It stores easily in a corner. I like it because it holds alot instead of having multiple bags all over the kitchen.