Features:
This 3-Axis Spirit/Bubble Level makes it easy to line up great shots from any side/dimension.
Simply put it into the camera\`s hot shoe/flash mount and check the three bubbles.
Take better pictures when using a tripod by making sure your camera is level.
Easily identify if your camera is set up level on a tripod
Specification:

3 Axis = precise leveling
Fits most SLR/DSLR flash mounts/hot shoes (Minolta & SON excluded)
Dimensions of bottom plate (that slides into the hot shoe): 17mm
Package include:

1pc Spirit Level Hot Shoe Adapter