This variation of the Snap-On Tablet mounting system features a clamp specifically designed for table edges. It handles surfaces from 12mm (1/2 ) to 52mm (2 ) thick. The TCM9163 is constructed from a combination of aluminum and soft velveteen plastic. There are precise cutouts for all of the tablet s controls cameras and ports. A 360 Ball Joint provides rotation and tilt adjustment while a Pull Back Release sleeve makes removing the cover from the mounting bar a breeze. We ve even included a Prop-Up insert that converts the quick release into a slip-free tabletop monopod. Hands-Free or Hands-On The quick release design means versatility. Need to walk the room to hear what the mix sounds like off stage or you want to capture some action on video Simply release the cover from the clamp post and be on your way. When you re done walking around simply click the cover back into the clamp post and you re hands-free again. It s perfect for audio engineers grade school teachers AV presenters and everyone in between. The u-mount adds a degree of protection and enhanced grip to your iPad. The Snap-On back cover is a tough combination of aluminum and high-strength velvet-textured plastic. Precision cut-outs provide access to all the tablet s buttons and keep the microphone cameras speaker headphone jack and data/charging port 100% functional. System Includes: (1) Snap-On Cover (1) Table Mounting Clamp (1) 360 Ball Joint with Pull Back Release Sleeve (1) Mounting Post (1) Prop-Up