Sturdy plastic. Wish they were larger but that's my ...
Sturdy plastic.  Wish they were larger but that's my fault for not knowing how big I needed :)  Wanted them as large as the ones my county used to give us --  these aren't quite big enough line the recycle bin we're issued.  Thankfully I have two bins (one for mixed and one for all papers) and was able to just swap the bins as the other was smaller....
Rating: 4 stars