Categories | Nitestik Safety Marker, Yellow £6.00 Ten years of glow, no batteries needed. The Nitestik Safety Marker uses Photoluminescent pigment technology, which absorbs light during the day to glow freely at night. Check stock and priceNitestik Safety Marker, YellowNitestik Safety Marker, Yellow on other UK sitesNitestik Safety Marker, Yellow on other UK sitesNitestik Safety Marker, Yellow on USA sitesNitestik Safety Marker, Yellow on USA sites | Brands |