Round Silicone Rubber pad is 12" in diameter by 1/8" thick. Pad can be used for many applications as a protective heat absorbent, in making gaskets seals, for sound deafening on drums. Pad can be used in wide range of applications as a Hot & Cold absorbent and surface protection. Temperature Range -80o to +450oContinous, 500oF intermittent. Surface Pattern; Smooth both sides FDA approved ingredients.