EliteShine 4-piece Pack Light Up LED Stud Party Earring (Mixed Colors) with A piece of Shoe-shape Key Chain Material: Stainless steel earring with Cubic Zirconia stone Light Color: White ,green ,pink ,yellow, blue ,purple ,red ,color changing ,8 colors for your choice. Power: 1*LR521 button battery (replaceable, included) Pack Size: One pair of cubic zirconia LED earrings in a papercard. Product Size: Approx.8mm(diameter)*15mm(Length)