Device for identifying articles such as animals, comprising a male part and a female part, which male part comprises an arrow-shaped element and which female part is provided with a passage with a front end and a rear end, wherein the arrow-shaped element can be inserted into the passage along the front end, wherein the passage is provided close to the front end with at least one protruding element, and wherein the passage is partly closed close to the rear end by a closing part, wherein the partly closed passage, including the protruding element, are manufactured integrally from a hard material method for manufacturing such a device.