If you\'re always losing keys or other valuables in the dark, then the Glow Markers will lighten up your day. All you have to do is leave the marker in sunlight for 5 minutes and it will create a glow for 12 hours, its photo-luminescent crystals absorb light and emit a glow making it easy for you to find your belongings.Photo-luminescent technologySupplied with cable ring attachmentOne 5-minute charge creates a glow for over 12 hoursRechargeable life of up to 10 yearsDuke of Edinburgh recommended6g