100% Guarantee GLTAU Glo-Toob Signal Light Aurora AAA

3.13″ overall. Water resistant. Impact resistant. Weight: 1oz. Red, green, and blue signal lights. Up to 7 modes. Fits with GTK. Able to be mounted onto Ops-Core helmets, webbing, and hook & loop. 360 degree viewing angle. Requires (1) AAA battery (included). Boxed with hanging tab. Made in China.