Product Details Product Details Water based (requires water to apply)Safe for use on other surfaces such as clothing, cell phones, laptops and most any surface.Comes in pack of 4Perfect for showing your team spirit on game day!Gentle on skin Officially Licensed Make a bold statement for your Boilermakers with this Purdue Boilermakers 8 Pack Tattoo. This Tattoo features a multiple team logos. Hail Purdue!