JJC SL series 2-in-1 Spirit Level Hot Shoe Protector is a mountable and efficient design centering the bubble within a circle over your hot shoe. You can easily see whether the bubble is centered, and this level takes up much less space than a large acrylic block!
Your internal flash will work without removing the Hot Shoe Cover. The only time you’ll take it off is to use an external flash, and high-tolerance machining ensures it won’t slip out on its own.
Perfect for Canon EOS digital camera that have a flash sensor on the hot shoe