New to the lineup of Swix is the new formula of CH 5X. Ch 5X bridges the gap between 4 and 6 to give you a more specific range of cold temperature wax. It is easier to apply and scrape then the 4, but will still give you great gliding properties. Recommended Iron Temperature 311F (150C), Snow Temperature: Cold, Actual Temperature Range: 18-7 F (@-8 to -14 C), Wax Form: Block, Composition: Hydro Carbon, Model Year: 2019, Product ID: 363875, Model Number: CH05X-18, GTIN: 7045951823660