the animal marking crayon is made of special waxes and parffin oil, which is non-toxic and environment friendly.

the animal marking crayon is suitable for temporary identifiction of cattle, sheep, pig,etc.  the marking remains visible on the back of pigs for 1~2 weeks and on the cattle or sheep for around 4 weeks.

Please notice that for the sheep, the animal marking crayon should be applied in the head or legs, because the markings on the back of sheep is difficult to wash out.