Features:100% brand new and high qualityIt uses a black ballpoint pen core of 0.5mm.With a slight twist, it can be rotated quicklyIts tail is a bright led lightWARNINGThis toy is not suitable for children under three years old because of small parts. Power supply: 3 x AG3 button cell batteries(included). Color: Random delivery (If you buy more than one,the color you received may be the same color or different colors) Material: Safe Eco- friendly ABSSales Way : Retail, Wholesal,Drop ShippingSize: One SizeLength: 9cm (3.54in)Width: 1cm (0.39in)Height: 1cm (0.39in)Quantity: 1PC Note:If you have big quantity (over 50 dollars), please feel free to contact me, I will give you best discount, thanks! Size For Manual Measurement, there may be a 0 to 2 cm error, belongs to the normal phenomenon.And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package includes: (Without retail package)1 x LED Spinning Pen