The long penlight is 35 cm in total length. The light-emitting part is 20 cm wide and 4 cm long, making it stand out. Features a gold ring. A must-have item for events and live concerts! The light has two modes: automatic color changing and single-color selection! To turn the light ON, press and hold for 0.5 seconds. To turn the light OFF, press and hold for 2 seconds. Available in 15 colors: Red - Green - Blue - Hot Pink - White - Yellow - Light Blue - Light Green - Purple - Orange - Light Pink - Violet - Lime - Turquoise Blue - Hot Orange Comes with a color chart. Heart-shaped size: Width 119mm x Height 108mm x Thickness 33mm, Total height 25cm Stick-shaped size: Total length 250mm, Light-emitting part 150mm, Diameter 30mm Star-shaped size: Total length 220mm, Light-emitting part 120mm, Major diameter 120mm Approximate illumination time: 13-20 hours Requires 3 AAA batteries (not included). The stick-shaped type is packaged in a plastic bag.