This totally gruesome kit is filled with squidgy heart chambers and fake blood. Add the tubes and pumps and mould a covering layer gooey skin. Place your creation in the donor organ box and surprise a friend when they open the box and see your heart beating away! GROSS! This totally gross set includes: Heart chambers x2, Red powdered colouring, Skin powder, Skin liquid, Balloons, Rubber bands, Tubing, Donor organ box, Instructions. Ages: 7+ years.