When you wear this LED Shamrock Beaded Necklace. To activate your LED Shamrock Beaded Necklace, press the button to scroll through 3 light functions: Scrolling flash, all lights flashing, steady light. Pendant Green Comes ready to use with non-replaceable batteries. Features Blinkee Fun Keep Blinking Specifications Color: Green Green Beads Length: 30 in. Dimensions: 2.5 x 2.75 in.