Specification:Material: Durable Hard PlasticDimension: As the picture showedColor: BlackQuantity: 1 pieceFeatures:- Brand new and high quality- Easy to mount on your car chair back splint- Stretchable clamp from 20 to 33cm- Suitable for putting 7" to 10.1" devices- 360 degree rotate for different directions viewing- Enjoy the pleasure of using tablet PC while taking carFitment: (Pls confirm the size before purchase.)for ipad 1/2/3/4/5for ipad miniPad mini with Retianfor Samsung Galaxy Tab 2/3for Samsung Galaxy Note 10.1 SM-P600E-BookLCD deviceetc.Installation Steps:1. Put the headrest mount into the two steel pipes of the front seat headrest2. Make the X or Y type fixed bridge combined with head stents3. Loosen the rod behind the fixed bridge， adjust the height and depth， and fasten tie the rod onlyPackage included:1 x Car Back Seat Headrest Mount Holder