SiliconeZone Grid Potholder, Black The SiliconeZone Grid Potholders features patent pending InSilate technology. The unique manufacturing process combined with the 2 sided waffle grid design gives the potholder a cloth like feel. The potholder conforms to your hand and to the item being gripped for a substantially better grip. The Grid's unique design offers the best heat protection of any silicone pot holder by diffusing the heat before it reaches the users hand. Made with FDA approved pure food grade silicone: Dishwasher safe; 7x 7 inches square