Unveil the ultimate prank with the revolutionary Color-Changing Bath Mat! This ultra-thin mat, less than 1mm thick, transforms from white to blood-red upon contact with water, creating a startling effect. Unlike painted imitations, this mat genuinely changes color when wet and reverts to white as it dries. Perfect for a spine-chilling surprise, this unique bath mat is the only authentic product that delivers a realistic, blood-curdling experience. Ideal for prank enthusiasts and Halloween decor! Red When Wet Vinyl Water-Reacting Blood-Red Footprint Bath Mat Blood-reactive mat Color-changing mat