The Parco adventure series microscopes have a heavy-duty all-metal frame and metal parts. Features a locked-on 10X wide-field eyepiece (16mm lens) with pointer and a 3.5” round movable stage with spring mounted stage clips. Designed with rack and pinion focusing system and slip clutch mechanism to prevent gear damage, as well as safety rack stop to prevent damage to specimen. Glass optics with multi-layer coatings for contrast and high resolution. Prism or substage LED cordless illumination makes this model portable and ideal for classroom and field use.Includes a 5 year limited warranty, excluding bulbs.