The installation is very simple and the S3 fits perfectly and without wobbling or slipping in the Bumper. The mobile phone with Bumper fits comfortably in your hand and in contrast to the case of plastic, which I have already tried (Casemate bt-cov pop / mumbi TPU skin), the feel is really good. Openings for div. Connections are big enough and the start and volume keys can be operated well. The S3 with Car is only slightly larger than without, yet the all-round protection is optimal. The price is yet gerechtfetigt not quite low but due to the quality and the good processing - strong buy recommendation.