ELASGLOW Collection: Elasco Heavy Duty Five Channel Cable Guard offering 1.38 inches in channel width with Glow in the Dark Feature. Elasco now offers the most visible glow in the dark cable protectors in the industry. In addition to our high quality urethane protectors, we have incorporated the highest grade of strontium aluminate which requires only 10 seconds of UV exposure to fully charge and will maintain its visibility throughout the night.