360° Rotatable 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. High-Quality Material | The high-quality TPU silicone is particularly robust, durable, and yet flexible. Compatibility | The case is compatible with the Samsung Galaxy S21 Plus. The package includes only the case. Smartphone and other accessories are not included.