Just stick it on! Recommended for cracked backs. For those who want to change the color of their device! Also for cracked back protection! About this product: Features: Compatible models: Applicable to iPhone 13. 9H hardness of the tempered glass back protective film, 3D edge using high-speed CNC grinding, back protection is more perfect, exceeding the original feel of the iPhone. [Tempered Glass] Combination of 9H hardness tempered glass film and carbon fiber layer, further enhancing the protection function! [High Quality] Products using advanced vacuum plating surface treatment, oil resistance, anti-fingerprint effect, wear resistance, long-time use is still the same as new, the surface is very smooth, very luxurious; High quality and high durability are achieved by integral molding. In the event of damage, the fragments will not scatter due to the anti-scattering processing, and the fragments will remain attached to the film. [Easy Installation] It includes a special cleaning kit, allowing you to install the back protective film more easily and cleanly without being bothered by bubbles. [Shatterproof] Shatterproof glass performance, it will not shatter into pieces, so you don't have to worry about damaging the display screen or people even if the glass film is damaged. Back color glass film [Wireless Charging Compatible] New iPhones mostly come with wireless charging function. Therefore, when choosing a back glass film, you want one that supports wireless charging! This film does not affect the power transmission/charging speed of wireless charging, and you can quickly charge wirelessly while it's attached.