Galaxy A51 TPU protective film. 3D full cover with fingerprint authentication. It has a self-healing feature for bubbles. (Small bubbles disappeared naturally after a night's sleep. Some bubbles may take a few days to disappear depending on their size.) ☆ No pets, no smokers ☆ Please refrain from purchasing if you are concerned about home storage. ☆ Although there are no noticeable stains, please understand that this is a used item.