Quad Lock cases feature a secure locking mechanism that is compatible with all original rotation and locking mounts, as well as a shock-resistant cover and protective lining. With a robust polycarbonate core and a shock-absorbing TPU outer shell, you can be confident that your Galaxy is protected every day. Its slim profile and soft material make it perfect for daily use. Quad Lock MAG? cases are thinner and sleeker than original cases and come with a customizable MAG ring. Quad Lock MAG? cases are compatible with all Quad Lock MAG? and Quad Lock original mounts. With Quad Lock MAG?, you can attach your phone even faster. Just position your phone, and the magnets will do the rest.