Amzer AMZ95686 Dual Tone TPU Hybrid Skin Fit Case Cover for Nokia Lumia 520 - 1 Pack - Retail Packaging - Black It's a combination of hybrid of a high gloss TPU and a matte TPU. Quality material used for this hybrid case provides shield and avoid scratches. The smooth outer back shell provides sure grip to keep your Nokia Lumia 520 from dropped or bumped. Precise cutouts give easy access to all the functionalities. Plug your charger, cable or headset without removing the case.