Extra shockproof: The combination of a soft silicone inner shell and reinforced plastic outer layer makes the case particularly robust. 360° rotating ring: The 360-degree finger holder ensures a secure grip and improved reach of your thumb for one-handed operation. Stand function: The ring can be used as a stand, allowing you to comfortably read, make calls, or watch videos. For car mount: The integrated plate in the case is compatible with all magnetic car mounts and can be easily attached. Compatibility: The case is compatible with the Samsung Galaxy S21. The package includes only the case. Smartphone and other accessories are not included.