UDplus, Inc. Duo Platinum Cured Medical Grade Silicone Pads, Set of 2, 3.25x4.5" Pads DUO contains TWO 3.5"X4.5" pads Handle the stickiest concentrates with ZERO waste or mess. Say goodbye to parchment paper! Convenient size is perfect for travel, home, or used together with the standard size Pad Microwave and hot-plate safe material spreads heat evenly when used for purging. Heat resistant to 500F Environmentally friendly. 3000+ uses. Clean with soap and water