O- seal for microwave oven 1.100%silicone raw material 2.any color and size ... are OK 3.application in sealing O- seal for microwave ovenMaterial100% Silicone Rubber Raw MaterialColorSemi-transparent or customizedShore Durometer A30shoreA ... -10daysPackage customized (cut in length or roll) O- seal for microwave oven, O-seal,silicone sealing