Shape
Square, hexagon, rectangle, round,etc
Size
30cm*30cm, 60*60cm, etc
Thickness
8mm, 9mm, 12mm, 15mm, 20mm, etc
Density
1260gsm, 1400gsm, 1730gsm, etc
Packing
Plastic bag + carton
Color
Black, grey, white, etc 40 colors totally
Application
Soundproof, decorative