ExploreOne 900x Microscope with Case. With this 28-piece set junior scientists will find everything they need to begin exploring the hidden details of the world around us. This compound microscope has a zoom eyepiece a rotating turret of three objective lenses and a maximum magnification level of 900x. It also includes color filters and a projection eyepiece that allows for tracing or for multiple viewers to see the image at the same time. The set also comes fully equipped with prepared and blank slides collection tools and extensive instructions for experiments. Specifications for ExploreOne Microscope w/Case: Manufacturer: ExploreOne Included Accessories: Carry Case prepared slides Magnification: 100 - 900 x Head: Monocular Magnification Type: Variable Battery Quantity: 2 Battery Type: AA Package Contents: ExploreOne Microscope w/Case ExploreOne 88-50101: 900x Microscope with Case