Zartz Arrow are made with Softek foam, a top secret formula that make ZartZ fun anywhere you will be amazed with where your Zartz will stick! Stick to almost anything. Extra suction cup arrows. For use with the ZX Cross Bow. The amazing ZartZ will stick to tons of surfaces for 15 to 30 seconds then auto releases! Incredible with Zartz, the whole world your target! Colors may vary.