Everyone will love & appreciate the Spectra pen. If you are a student, this will lend some interest to homework. At home, jot down notes while enjoying the light show. Your shopping list will never be more exciting. Office workers can put a smile on their face during a long day with the distraction of a fun disco pen. The pen itself is comfortable to use. It has a retractable nub that occurs by twisting the collar. The light show is transmitted from the disc when activated by a click of the button on the side of the pen. The disc spins emitting multicoloured lights. Features Include: Retractable nib Multi coloured lights 32 different patterns