Purchased from Amazon, new and unopened. Compatible with iPhone Plus/Pro Max series (Length 14.9 x Width 7.1 x Thickness 0.01cm) ※Phone body and case not included. 【Revolution in Smartphone Cooling! Completely Solves iPhone Overheating Problems】 iPhones lack high-performance cooling materials under heavy load, preventing rapid heat dissipation and causing uneven temperatures on the back. Some areas reach over 47°C, negatively impacting performance and lifespan. Graphene, currently the material with the highest thermal conductivity, is used in our developed 100% pure graphene cooling film. This film evenly distributes the iPhone's heat across the entire film, continuously lowering the temperature of overheating areas on the back. 【Self-Developed 100% Pure Graphene Cooling Film】 Applying the revolutionary material that won the 2010 Nobel Prize in Physics to smartphone cooling. It boasts the highest thermal conductivity among known materials, 10-15 times better than aluminum or copper. We have a complete graphene industrial chain and have developed a 0.1mm 100% pure graphene film. We use irregular cut sizes to completely cover the high-heat areas of the iPhone. Experiments have confirmed a temperature reduction of 6-10°C in the hottest areas. 【Smartphone Cooling Compatible with All Cases】 At only 0.12mm thick and weighing 0.15g, it can be easily installed with various iPhone cases. It uses a physical cooling method, and no substances are generated during heat dissipation. You can apply it between the case and the iPhone and forget it's even there. 【Easy Installation and Excellent Durability】 The 0.1mm graphene material is coated with a 0.01mm ultra-thin PET film on both sides, providing abrasion and scratch resistance. 3M double-sided tape is included for easy removal with moderate adhesion. This product can be applied inside the case. 【Precautions】 When installing, first confirm the fixing position, then secure it with the included 2-3 pieces of double-sided tape. Due to the ultra-thin design of the product, handle it with care to prevent separation. As it is a two-dimensional material with a single-layer carbon atom structure, it may affect wireless charging. We apologize for any inconvenience. Ultra-thin iPhone Cooling Sheet, Graphene Technology, Smartphone Cooling Sheet, Case Compatible, 0.12mm Design for Physical Cooling