Features: 1. Bloody bath mat sheet, a thin plastic roll that only reacts with water, color changing wet footprints into blood red stains. 2. Nearly invisible thickness, hide anywhere. A incredibly unique prank. 3. Horror Decor Gifts: Scare with bloodstains or bleeding foot mats for your haunted house and halloween party. 4. Red stains will disappear over time. Self-drying reusable posters. 5. Also works as a great horror gift for friends, fun present for birthday parties.\ Specification: Size: 40 x 70cm Material: PVC Weight: 160g Notice: 1.Due to the different monitor and light effect, the actual color may be a slightly different from the picture color. 2.Please allow 1-3cm differs due to manual measurement. Package List: 1 x Color Changing Mats