K-EDGE Picatinny Rail Mount For GoPro and Universal Mount Picatinny Standard (MIL-STD-1913) Fits any GoPro. -20 Interface fits any universal camera mount. Coating: Hard Anodized Black Finish (MIL-A-8625, Type III, Class 2 Black, 2mil Thickness) Clamp bolt and GoPro bolt are key-matched, 5/32 Allen Key provided Lifetime Warranty. Made in Boise, Idaho, USA