The Safe-Mark Marker uses a patent-pending ink formula to permanently label storage bins, trays, machinery parts and equipment where food products, including meat and poultry, are in repeated or continuous contact. The quick-drying black ink is safe and effective on a wide range of surfaces including metal, glass, plastic, shrink film, cardboard and rubber.The marker incorporates several safety features including a locked nib design to prevent the marking tip from falling out and a threaded barrel to secure the marker cap during use. For stamping and stenciling work, Safe-Mark ink is also available in gallon containers.