These are ATEX certified on-metal tags specifically designed for use in harsh environmental conditions. They can withstand contact with most solvents and acids generally used in industrial processes such as Mineral- and Vegetable Oil, Petroleum, Saltwater and unleaded gasoline and operate up to a temperature of 60° C. ATEX certification provides clarification for use in potentially explosive environments. As these are on-metal tags they are perfect for industrial uses such as tool or machine tagging and object identification in harsh industrial processes. Colour: Yellow Features: This product is sold in packs of 50 pcs. Smaller order quantities are available on request. Please contact us. We offer price reductions on high order quantities, please contact us for further information.