Quad Lock Cases feature our secure locking mechanism compatible with all twist lock mounts impact resistant edge to edge cover and protective lining. PROTECTIVE / IMPACT RESISTANT. With a tough polycarbonate core and impact absorbing TPU edge-to-edge outer shell you can be confident that your Phone will be protected every day. SLEEK DESIGN. The slim profile and soft touch material make it perfect for everyday use. Quad Lock MAG Cases are thinner and flatter with a customisable MAG Ring. QUAD LOCK MAG. Quad Lock MAG Cases are compatible with all Quad Lock MAG and Quad Lock twist lock mounts. Quad Lock MAG makes mounting your phone even faster simply position your phone and the magnets do the rest. Both Quad Lock Cases are compatible with wireless charging. Quad Lock MAG only available for selected Phones.