[Made in Japan] SQUAIR "The Dimple" [Silver] iPhone 6 Bumper case for iPhone 6 4.7 inchi | Alminum Metal Bumper Frame From design to the supply of raw materials, each stage of the manufacturing process, inspection, and packaging, everything was carried out 100% in Japan.The desire of Japanese technicians to wholeheartedly satisfy the user was the driving force behind this unprecedented development. This resulted in being able to deliver to the world an item of high-perfection that doesn't even allow for 1/100mm of error. Unlike most metal bumpers that use screws in their construction, The Dimple uses no such items. A special latch construction method, Itoigawa Latch, was achieved, consisting of 4 particularly angled parts that can be assembled and disassembled with ease.Because no special tools are required, you can easily remove and insert SIM cards. In order for you to enjoy using an increasingly lightweight bumper, and specifically for The Dimple itself, this unique construction method was developed. The selected aluminum alloy A7075 Extra Super Duralumin was developed in Japan and is used in such things as planes. It is as light as plastic and very strong. However, when thin, small, and intricate, it can be extremely difficult to process and requires the skills of a craftsman.The bumper weighs a mere 17.5g. Through the use of a delicate molecular level surface treatment, the material gains non-slip properties, and when perspiration comes into contact with the surface, it immediately evaporates eliminating fingerprint marks.