Color: black， whiteFour reasons to purchase our products: good quality have a repeat of 1: we are the most primitive new materials， high gloss， are on the market. Looking matte material is relatively poor， low grade， of course the price for them to reduce the cost of raw materials， 2: high quality plating and new fixed screw spring paintball the market is cheap， and scrap metal spring screw， compared to stick out a mile. 3: mobile phone contact surface of silica gel bright colors on the market is perfect， and there are dark side glue， a little peel will fall 4: the most concern is the suction， suction gel directly influences the suction force of the suction cup， skeez sucker suction you'll see natural impurities!Zhang Du: a degree 0-145 degree， 360 degree rotation the maximum width is 10cm， weight: 80g