Now kids can create their own unique customized cars! With the Hot Wheels Fusion Factory they can create custom silicone vehicle bodies, add a chassis and accessories and they're ready to race! The Hot Wheels Fusion Factory (sold separately) puts kids in the driver seat of vehicle design with tons of options. Keep the Fusion Factory producing new cars with the Hot Wheels Fusion Fluid refill assortment. Each pack includes a different color silicone syringe and 3 mixing tips enough material to create 3 new cars! Packs sold separately in a variety of 7 different colors. Hot Wheels Fusion Factory system not compatible with Hot Wheels Car Maker.