This kit includes everything you need to transform your Stubby RDTA into the perfect MTL device. The condensed chamber improves performance and is optimized for small coils, while the tighter airflow pins let you adjust the airflow under the coil. The wick control plugs let you customize flow at different watts, giving you complete control over your experience. With the Stubby MTL Kit, you can enjoy a truly authentic mouth-to-lungexperience.