Even the toughest surfaces are no match for theáeddingá950áindustry painter. This industrial marker can write on uneven; wet or rough surfaces. This pen doesnÆt use ink; but rather a highly-opaque and extremely durable coloured paste. It marks wood; stone and concrete as well as many other materials and can be used in a wide range of temperatures. The paste is non-drip and even writes under water or in the rain. Theáeddingá950áindustry painteráis available in three colours and includes a turning mechanism that moves the bullet nib in and out.