It is peeling in the basket and on the bottom of the pan under the basket. The clamp arm is made of aluminum and seems to be heavy duty. Reef Swellular Cushion only lasted 3 days - the bottom part came off completely. I also bought a pair for my man. The slipper itself is actually nice so I gave it 2 stars. I’ve searched, bought and returned so many slippers that did non of the above, until I found these. Always great! I searched on this listing as well as their website and the internet in general for a list of ingredients. The case is very attractive. If you are serious about asking for my experience and opinion, please ask again in six months time.