Features: 1AMAZING COLOR CHANGE EFFECT &ndash Try the world&rsquos first bloody bath mat (R), a thin plastic roll that reacts with water, and wet footprints change color into blood red spots. The carpet changes color when exposed to water. 2 AMAZING EFFECT &ndash Give your boyfriend or girlfriend the shock of their life as they leave a trail of blood stains out of the shower. A incredibly unique prank that you can hide nearly anywhere. 3 HALLOWEEN BATH MAT &ndash Experience the only color changing blood mat sheet that really turns red when wet. 4 PERFECT FOR HORROR FANS &ndash No other horrible gag gift for your boyfriend comes close to the shock he& 39ll have seeing his toilet water splashes and footprint stains turn red. 5 BEST HORROR GIFTS - A gift idea for horror lovers worldwide. Awesome birthday gifts for her. Unique gag gift idea for a zombie themed bathroom. Size: about 40*70cm Weight: about 175g Material: PVC Color: A/B Instructions for use: Do not put in the washing machine or dryer. Keep away from heat sources. Wipe and hang to dry after use to prevent stains. If you use towels to dry, make sure your towels are clean and free of soap residue, which will stain your mats permanently. Package included:1 pcs Bath Mat