LapDawg has introduced the X-4 Aluminum which converts from a flat, easy to store unit into a 20-in tall TV tray, a breakfast tray, or a laptop tray. Other configurations are possible as well.
X-4 Aluminum in stowed position (LapDawg)
The arms rotate 360°, operate with push buttons, and the joints auto-lock. The push buttons have degree marks so it is easy to obtain exact settings. Both sides of the anodized aluminum tray can be used. One side has a rubber stopper and the other has a curled bottom edge. The unit weighs 5.29 pounds. The MSRP is US$89.99. There is a life time warranty against defects.
Push button rotation (LapDawg)
The tray, which has an anodized aluminum surface with grooves to prevent slippage and overheating, is 15.25 x 9.5-in. Each arm is 12-in. There is an 18.25-in span between the arms.