Used for all dark skinned animals. A special reliable non-toxic ink which has been widely adopted for marking purposes. It is made to a formula developed for the identification of Pure Bred Sheep. It is also used extensively for cattle and pigs. Alternative inks available for ear and carcass marking. Available in paste form 250g, 500g and 1litre tins, also available in liquid form 4oz and 1pt bottles. Ask for details.