The Magic-Flight Herbal Concentrate Tray enables you to use herbal concentrates and extracts in your Launch Box. Any concentrate that can fully melt to a liquid and leave no residue behind is suitable for use in the screened tray. The unscreened tray works with all types of concentrate that do not completely melt to a liquid, do not use liquid concentrates with the unscreened tray. These reusable trays are constructed from stainless steel to securely and safely vaporize your desired concentrate. The tray can be cleared and reused with a standard torch lighter (not included).