This Resin Hot Shoe Hotshoe Bubble Spirit Level for Canon / Nikon / Samsung / Pentax / Panasonic / Olympus DSLR SLR Cameras will stop straining your eyes trying to read a block 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.