take a look here (from their website)
http://www.walkera.com/en/admin/js/kind ... /20140123/
tbh, the pictures I take wont be any better than these.
And it looks like they give you dimensions, pictures of the motors and some ports.
this short video helps too
[youtube]http://www.youtube.com/watch?v=OzfRrhSyOxQ[/youtube]
and here is a break down, with the weight
G-2D gimble is specifically designed for Gopro Hero3 camera by Walkera adoping aluminum alloy CNC frame,brushless motor,high accuracy intelligent electronic control system.
Be utilized to filming and advertising aerail photography etc.
High precise and stable frame design to make sure the camera control accurately during high-speed flying and take the best aerial photography pictures and videos.
Specifications:
1.Gopro Hero3 AV Line out
2.Power voltage compensation available
3.Support motor drive side short circuit protection
4.Support initial roll and tilt customed
5.Support stick rate mode and position mode
6.Regular receiver accepted
7.Operating voltage

C7.4-28V (recommended 12V,3S Lipo battery)
8.Opetating current:200mA-500mA(depends on the motor power and voltage supplied)
9.Opetating temperature:-15℃-65℃
10.Sensor technology:3-axis MEMS gyro and accelerometer
11.Max angular rate:2000°/sec
12.Max acceleration:16g
13.Frenquency:2000Hz
14.Motor driven frequency:46 KHz(no noise smoothing drive)
15.Control accuracy:0.1°
16.Control range:-45°-45°(roll)/-135°-90°(tilt)
17.Applicable camera:Gopro Hero3
18.Size:100mm*94.5mm*84mm(L*W*H)
19.Weight:120g(Camera not included)
20.Program online update available (UP02 and UP02 adaptor requested)
Features:
1.Easy to assemble,plug and play Agility&Light design
2.United with high intensity,agility and light design,support Gopro Hero3
3.Support with Walkera ilook Camera
4.High performance brushless motor driven
5.High precision, high stability, simple structure and light weight