Leofoto 16'' Lapto /Projector Tray/Combined w/ Tripod 3/8'' &1/4'' Mounting Sockets/Arca Swiss Dovetail Panning Base Black. Its size of 8.9 inches allows it to fit almost all laptops of different sizes. The tray features flanges on all four sides to prevent the laptop from accidentally dropping. The tray can be mounted on ball heads or tripods via the 1/4'' and 3/8'' mounting sockets and Arca standard dovetail. Additionally the tray comes equipped with a 360degrees panning base which allows for smooth and easy panning. Specifications for Leofoto LCH-2 16'' Lapto /Projector Tray/Combined w/ Tripod 3/8'' &1/4'' Mounting Sockets/Arca Swiss Dovetail Panning Base: Manufacturer: Leofoto Color: Black Fabric/Material: Aluminum Length: 15.4 in Features of Leofoto LCH-2 16'' Lapto /Projector Tray/Combined w/ Tripod 3/8'' &1/4'' Mounting Sockets/Arca Swiss Dovetail Panning Base Aluminum CNC Machining Package Contents: Leofoto LCH-2 16'' Lapto /Projector Tray/Combined w/ Tripod 3/8'' &1/4'' Mounting Sockets/Arca Swiss Dovetail Panning Base Leofoto LCH-2: LCH-2 16'' Lapto /Projector Tray/Combined w/ Tripod 3/8'' &1/4'' Mounting Sockets/Arca Swiss Dovetail Panning Base Black