Stop straining your eyes trying to read a blocky bubble level! This innovative and efficient design centers 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! Fits standard hot shoes. - Note: The hot shoe cover/protector does NOT fit Sony/Minolta cameras - Protect the hot shoe from scratching keep it clean and avoid moisture - With the bubble spirit level on the hot shoe protector you could have a precise horizontal measurement at anytime - Lightweight and small size convenient to carry - A must-have useful accessory for photographers