Impact Zero Walnut Protective Case for iPhone 13 Pro Max Impact Zero - Making drop's a worry of the past The Impact Zero Walnut Case is a unique and stylish case that keeps your device protected from every shock, drop and knock. Protected by Covestro, which is typically used in front line protection for the likes of Police and Firefighters, this cover promises protection against any impact. Designed with a marginally raised lip at the top and bottom of the case ensures unparalleled device screen protection. Silver Ion additive is added during manufacturing which provides continued day to day protection and a significant reduction in harmful bacteria build ups. This means you can take your device anywhere without a worry. Every Impact Zero Walnut Case is backed by our 2 Year Device Replacement Guarantee.