Pet Tattoo Kit #300 (4 space) without Ear Release Stone Mfg Tattoo characters are 0.300 inch tall. Strong, lightweight aluminum alloy pliers has the right sized head for small spaces such as ears of rabbits, dogs, cats and pigs. The head holds 4 digits in 1.25" of space . Kit includes pliers, set of #300 digits 0 - 9, 2 blanks and 3 oz. of black ink and carrying box