You don't want to know what happened in this room! These Dripping Blood Gel Clings feature reusable and washable dripping blood spatters that cling to nearly any clean, non-porous flat surface. Dripping Blood Gel Clings are self-adhesive to add a special gruesome touch to your Halloween scene. Package contains 2 Gel Clings each measuring 19 1/2in tall x 6 3/8in wide.