I purchased this here and used it once. I am selling it because I don't have the opportunity to use it. Mercari delivery, 1 star-shaped, 2 stick-shaped, concert lights * Color changes and combination changes are not possible. * Please check the title and images. There are sales for star-shaped heads only, star-shaped head main units, and stick-shaped penlight sets. 15 color changes Red, green, blue, hot pink, white, yellow, light blue, light green, purple, orange, light pink, violet, lime, turquoise blue, hot orange, automatic change every 3 seconds, and manual color selection are possible. King Blade sheets can be inserted. Star-shaped head size Width 119mm Height 130mm Thickness 33mm Stick-shaped size, equivalent to King Blade size Total length 25cm Lighting part 15cm Diameter 3cm Continuous lighting time approximately 12 hours maximum Uses 3 AAA batteries. * AAA batteries are included with the penlight main unit. Please understand that these are test batteries for blinking. AAA batteries are not included with the sale of the head unit only. * Ships in simple packaging, with cushioning sheets and a thick paper envelope. Not wrapped in bubble wrap. * Please do not purchase if you are looking for a perfect product or are overly sensitive. * For those purchasing the penlight main unit, press the switch on the main unit briefly to turn it on. Long press to turn it off.