John Ritzenthaler's RZS685BK17 Ritz 685 17" Black Silicone Oven Mitt will protect against extreme heat. This mitt features an extremely durable silicone exterior and a 100% cotton interior which combine to provide protection against heat up to 685 degrees Fahrenheit from oil, flames, steam or boiling water. Also, the unique tread design on this mitt provides a sure, confident grip and for easy cleaning, this mitt can simply be placed in the dishwasher.