Package: these 10 pieces LED flashlight key chains in 5 colors, each color has 2 pieces, enough for you daily use or replacement, or sending them to friends, classmates, and family Size: small LED flashlight is 4 x 1.2 x 1.2 cm/ 1.57 x 0.47 x 0.47 inch, attached with a 5 cm/ 1.97 inch long "C" ring; The lumen of LED Flashlight is about 10 lumens