CA-BLHS3 is a lightweight and small size bubble leveler; it's designed in a cube shape and can be easily slide into the hot shoe mount of your camera. With the help of tripod, it will be no problems to level your camera horizontally! The 3-axis bubble levelers are telling you your current camera position, so it will be very easy to make great shootings. It fits to most SLR or DSLR cameras. (except for Sony, since Sony has a different hot shoe mounting)