Features: 1) Environmentally friendly - batteries not necessary 2) Activates by pressing it rhythmically 3) Made of ABS 4) Color: yellow, purple, blue or transparent dark blue 5) Includes hand strap and two CR2032 batteries Inner packing: 1pc/color box Unit size: 100X50X30mm Outer packing: 200pcs/ctn Carton dimensions: 54 x 34.5 x 25cm Lead-time: 20 days for 20, 000PCS