GuangZhou Wan Er Electronic Co Ltd (Casetop Co., Limited) has 10 years of producing phone case, laptop backpacks. We have our own factory. We do mainly many kinds of phone cases, such as IMD case, silicone cases, TPU cases, quicksand cases, pu leather cases, 2 in 1 / 3 in 1 cases and so on. In addition, we also do laptop bags and backpacks. Our factory has UL Certification.