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Helps you with a nail to the guide as a laser pointer. We hang the picture thing in home or gallery. We want equally spaced horizontal. But don’t be hard to do yourself. We need are guidelines. The interval for a program to keep and shall be horizontal.Turn the wheel, you can control the laser pointer. Small wheel is a laser pointer to control the number. Big wheel is a laser pointer to control the interval. And you can be controlled by the horizontal, looking the lever.
anseong, South Korea