The 35cm long penlight is a big size, with a length of 35cm, a 20cm shiny part, and a diameter of 4cm. Uses a gold ring. A must-have item for events and live concerts! There are two types of lights: automatic color changing and specified color lighting! To turn the light ON, press lightly for 0.5 seconds. To turn the light OFF, press for 2 seconds. 15 color variations: Red - Green - Blue - Hot Pink - White - Yellow - Light Blue - Light Green - Purple - Orange - Light Pink - Violet - Lime - Turquoise Blue - Hot Orange A Kinpre sheet is included. Heart-shaped size: Width 119mm x Height 108mm x Thickness 33mm Stick-type size: Total length 250mm, illuminated part 150mm, diameter 30mm Star-shaped penlight Approximate illumination time: 13 hours to 20 hours Uses 3 AAA batteries Stick type is packaged in a plastic bag. Heart-shaped and star-shaped penlights are packaged with bubble wrap.