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Discover the ultimate precision and clarity with the DYKEM UV Marker Permanent Medium Clear-Invisble. This marking tool has clear marks that are invisible in ordinary light but appear blue under UV (ultraviolet) light, making them ideal for use in low visibility conditions. The permanent nature of the marks ensures they withstand various weather conditions and resist fading, while also being safe on most surfaces. The replaceable medium bullet tips deliver an accurate and precise line width that is perfect for a wide range of applications, including electronics, metal, plastic, wood, paper, and more. Take control and mark with confidence using the DYKEM UV Marker Permanent Medium Clear-Invisble.