Main features: easy mark, easy to operate mark a long time, for life marking material resistant to seawater corrosion, abrasion can write letters, numbers, text and other identifiable individuals can be customized small number of animal species can be marked less damage: Fish , birds, mammals and other accessories: handheld clamp Note: Select the appropriate marker location, well disinfection applications: broodstock mark, releasing mark, individual traits Breeding breeding, fishery resources investigation and assessment