GPCT In-Car Back Seat Headrest Mount Holder For Apple iPad iPad2 The New iPad 3, Samsung Galaxy Tab, Motolora Xoom, LG Optimus Pad, HP Touchpad, GPS - 360 Degree rotating The width of two fasteners is adjustable (between 3 1/4" ~ 7 1/4" in width) Maximum weight load: 5 Kg (or 11lb) Fully adjustable to hold different sizes (9" 10" 13" such as ipad 1 or 2, netbook & laptop, GPS, Digital Monitors, etc) No messy sticky adhesives 4 prong locking mechanism comes in 2 pieces that snaps tightly into place