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Amazon.com: Quarton Laser Module VLM-635-56 LPO-D10-F10 Red Line Laser Module Fan Angle 10° Uniform Line, Class I Laser, Less Than 0.39mW (Focus: 10cm) : Industrial & Scientific
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Laser Level Self Leveling, Elikliv Base Fine-tuning Laser Level, 200ft Outdoor Rugged 4D Green Cross Line Professional Laser for Construction and Picture Hanging, Class: Class 2,<1mW power output - Amazon.com
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