Shock everyone this Halloween with a realistic Bleeding Brain Headpiece! Just squeeze the hand-held heart pump and blood drips and flows through the brain. Blood recycles back down the tube in your sleeve into the heart pump so you can scare your friends again and again!, The two layer headpiece allows blood to flow without a mess! No assembly required. Just fill with blood and pump! You can replace the blood with fresh blood, or for a special effect, use water tinted with green or purple food coloring. Add gruesome makeup and extra blood on your face and bandages for a completely scary look. A two ounce bottle of blood is included.