The sword is made of plastic, has the appropriate button cells and brings three LED's to light up sufficiently strong.
Also convenient is the nested system, which eject the sword quickly and plugging together very simplified. Pressing the button allows the color change, which can quickly degenerate into wild clicking but if you want to have a particular color.
Processing seems basically sound, although everything seems quite simple and as bulk import. Therefore, considering the price I give it even one star deduction. In summary, however, a real buy recommendation.