The Grid silicone pot holders feature Patent Pending InSilate Technology for superior heat insulation and grip. The unique waffle-like grid design gives a cloth-like feel and contours to the hand while diffusing heat. The holders offer the best grip and most heat insulation of any Silicone pot holder. Safe up to 675 degrees Fahrenheit. Dishwasher safe. Can also be used as a trivet or a jar opener.