The Pre-Heat Line features a unique blend of cannabinoids, including THC-X, THC-JD, THC-B, Delta-6, Delta-8, and Live Resin. Also, it uses a unique device with a pre-heat function to ensure you get the best hits every time. What makes the Pre-Heat Line stand out is the fact that it has 3.5 grams of Cannabinoids for you to vape! It means this device should last you a while.