Inkology, Hairy Zoo Lite Up Novelty Ball Point Pens, 18 pcs (229-1) Adorable and colorful animal design tops on top of ball point pens Whack their heads and it lights up with a flashing light show The hair is stretchable and rubbery. Double fun in this one. Available in Porcupine, Pig, Lion and Bird designs Ball point pen writes with Blue ink and medium point pen nib