Tail painting is the most popular way of detecting heat in cows. So why does it still take so much time and effort? With the Tailpainter, you can tail paint your cows in a few seconds, from the place that is easiest and safest for you. One tool, three configurations to suit your individual needs. The Tailpainter is made in Ireland and stronger than ever. The One Colour Refill Kit provides one applicator head allowing for one paint colour at a time.