Features: Black nitride coated stainless steel. Cylindrical tritium lamp for double-sided green light. Description: Benchmade fans, rejoice! Your favorite knife could get a whole lot cooler with the Glow Rhino Tritium Lanyard Hole Plug! Made with a luminescent hydrogen isotope, this alternate option for a lanyard hole provides a point of light that will always glow and never run out of battery, so when it's dark, you can always find your knife in an instant. Take your knife to the next level in both style and practicality with this piece! Compatible Benchmade Models: 535 Bugout (NOT compatible with the 535-3 Bugout or the Mini Bugout) Please note: Installation of this lanyard plug takes proper tools and knife know-how. The Benchmade warranty does not cover disassembly by anyone other than Benchmade's warranty department. If you're a tinkerer, check out more of the aftermarket parts we carry!