The 10mm mohair tip allows the use on any surface, even the worst like concrete, while its soft plastic body allows to squeeze it without any stress, in order to measure out the quantity of ink. Squeezer 10 contains 70 ml of Buff Proof Ink, it's easy to refill with the suitable Grog Refiller, carries an antidrip rim for painting without getting colored and a tight overcap. An incredible product from a brand which revolutioned the world of tagging tools. A must have. Available in following colours.