Plastic. Doesn't fit well, but nice snd warm on a cold nite.

I love them. I have 6 of them. I also gave them for XMass presents and friends love them.

These are a must have year round!! Quality seat and the warm seat is awesome!!

I bought this item a month ago and it has made the cold days and nights more comfortable!

I bought this for my son for his new home and he loves it

I have used this for more than a year and I'm quite pleased with it.

A great valued unique product. All who use it are amazed !!

Just hate sitting on a cold seat. This definitely solves the problem

Absolutely love it!! Seems to be good quality, the light is a very nice feature

Wife loves the heat. Especially in the middle of the night.