I've been using this for about a month. It's well-made overall. The protruding parts are also sturdy. I'm selling it now because I'm replacing it. I've cleaned areas where dust tends to accumulate, such as the bottoms of the protrusions. Gray and brown slippers with non-slip soles for comfortable wear. - Colors: Gray and Brown - Design: Slipper type, with straps - Sole Material: Rubber, non-slip design - Size: Free size (set of 2) Thank you for looking.