Oven Mitt with Silicone Heat Resistant Grip and Silicone Pot Holder (Blue) Oven Mitt 13-Inch long by 6-Inch wide. Pot Holder 7 Inch by 8 Inch Soft, fabric liner for added insulation and comfort; Non-slip silicone ribs for improved dexterity and grip The silicone grip is water and oil proof, Non-skid, non-slip silicone Heat resistant to 425-Degree F 80% Polyester 20% Cotton padded liner