***** **********Best Quality Guranteed. *****40-piece beginner biological microscope kit offers 120X, 240X, 300X, 480X, 600X and 1200X magnifications*****Durable metal arm with stage, clips and rack and pinion focusing*****Built-in LED electrical illumination and reflecting mirror for natural illumination*****Built-in rotating color filter wheel and power indicator on rotating turret*****The book - The World of The Microscope and two AA batteries included