Dear: High Quality，wish you like it! Introduction:Product Name: Car back seat Tablet PC supportProduct weight: 281 gProduct size: 15 x 16 x 5 cm Product material: ABSProduct color: BlackInstallation position: Back ChairArm range: 7-11 inch Tablet PC products， For iPad All Tablet PCProduct features:1 for iPad size the back bracket and other tablet devices， clip distance adjustable range 14-25CM!2 can be used in addition to for iPad， e-book， ultra-thin LCD device.3 telescopic structure convenient and rapid removal and installation.Installation steps:1: two pipe head bracket into the front headrests.2: the X type (or type Y) fixed seat and the head pillow support combination3: loosen the fixed seat behind the bar， adjust the height and depth of fastening rod can be