Material:AL Bubble AL and Bubble Color:silvery aluminum&clear off-white color Bubble Thickness:10*4mm 10*2.5mm bubble Bubble GSM:130 260 Roll Size:Customized Original Certificate:Available Heat Reflectivity:97%-98% Certificate:AWTA;SGS;TUV Structure:AL Bubble AL;AL BUBBLEf AL;AL Bubblef AL;AL bubblefc AL ROLLS 40HQ:400