Adam Hall 019505 Speaker Front Foam 5mm blk, Front Foam, Sheet size (L x W): 2 x 1 m, Thickness: 5 mm, Permits free passage of air, Material: Ester-based polyurethane, Can be fixed with glue or other adhesive, May be used for speaker grill applying spray adhesive, Weight: 0.30 kg, Colour: Black