This device is used to collect blood from nosebleeds. Simply stick the tip up your nose and blow out. Instead of blood floating around the space ship or space station, it will be collected in the Nosebleed Stopper. The print is meant to be printed in ABS plastic and comes in two parts. The smaller part slides into the bottom of the larger part. With the nosebleed stopper, there will never be blood free floating in space again, making space travel easier for future generations.