Gorilla 911 has one of the largest assortments of Reflective Helmet Tetrahedrons that you will find. Our tets are printed on a high quality, engineer grade vinyl that will stay adhered to your helmet for years. From solid colors to custom designs, Gorilla 911 has your Tetrahedron needs covered. Don't see the exact design you want? Give us a call today and we'll work with you to get what you want into your hands and onto your helmet.