Don't touch this hazardous waste unless you want to be mutated! These self-adhesive Biohazard Gel Clings feature reusable and washable dripping sludge spatters that cling to nearly any clean, non-porous flat surface. Biohazard Gel Clings glow under black lights to add a special radioactive touch. Package contains 2 Gel Clings each measuring 18in tall x 12in wide.