Anti gravity Case for Iphone 7+ . Magical Anti-knock Nano Suction Cover For iphone 7 - Black. his is a function of the adsorption magical phone case, can be adsorbed on the smooth surface For example: glass,mirror, smooth metal, writing whiteboard, tiles, furniture and other smooth paint 2. imported polymer nano-materials, gently put to suck,do not worry about not fall off after sucking broken phone. 3. The sticky tack cloth, macroporous polymer adsorption. 4. well suited for mobile navigation, as used with the paste, used with the check! 5. completely hands free, easy to watch videos, work needs.