The Radioactive Glowing Syringe is a must-have for your Mad Doctor costume! The over-sized prop syringe has a skeleton design and is made out of hard plastic. The awesome thing is that it glows just like it’s radioactive, with the help of the included green glow stick. Once the glow stick is exhausted, it can be easily replaced. The prop syringe is 14 1/4” in overall length.