Replacement safety plates are made of high impact and lightweight, clear, polycarbonate material. Designed to prevent surface damage to filter plates and lenses, these replacement plates are compatible with a variety of Jackson Safety welding helmets. Designed to prevent surface damage to filter plates and lenses, these replacement plates are compatible with a variety of Jackson Safety welding helmets Designed to prevent surface damage to filter plates and lenses, these replacement plates are compatible with a variety of Jackson Safety welding helmets