Neoprene Loudspeaker and Baffle Board Gasket. 6mm wide, 3mm thick. Self-Adhesive, with excellent sealing and compression qualities. As used by numerous OEM loudspeaker manufacturers. This width is recommended for use as a gasket for most drive units, also recommended for sealing the front board of our LS3/5a cabinets(1m per cabinet required) . Sold by the metre.