Material is high quality 3M vinyl. I really like the oversized design as it wraps completely around the doorknob. It's a little tricky to get the vinyl on the doorknob properly so I had to take it off a few times before it fitted properly. I'm glad they gave you two extras because I screwed up one of the bandages, which is easy to do. There has to be a way, maybe slides too, so you can align the slide in exactly the right place every time. I do not know. Great value for money and I really like…