This basic compound microscope is an excellent unit for the younger scientist. It features all metal construction for ruggedness and durability at an economical price. This unit has a 10x wide field, locked-in eye piece mounted at a 45 angle for comfort. The triple nosepiece features 4X, 10X objectives. This scope also has low-position coarse focusing with a built in slip clutch to prevent gear damage. The built-in 110-V illumination is great for viewing all types of specimens. Ages 10+. Recommended age 10+ years