Accuform mcslhyrvsp gas cylinder shoulder label, hydrogen compressed, vinyl adhesive, 5/pack specifications: cylinder shoulder labels identify the gas content within compressed gas cylinders printed matte surface has permanent acrylic adhesive back flexible vinyl can be applied to curved surfaces moisture resistant for a variety of light-duty indoor and sheltered outdoor marking needs scored back liner for quick peel-off and application they comply in accordance with osha 29 cfr 1910.253b1ii