Alfonbra canaletas alfombra 4 canales para mineria black velvet carpet 4 channel mat the thickness is 15mm. Alfonbra canaletas alfombra 4 canales para mineria black velvet carpet 4 channel mat the size is 2x24 meters/roll Alfonbra canaletas alfombra 4 canales para mineria black velvet carpet 4 channel mat the surface is 4 lings surface.