This dual light high power microscope comes with a 10pc slide kit of five biological specimens and five blank slides. It has an incident (the pen light) and transmitted LED light sources allow for both the viewing of opaque objects lit from above and the viewing of translucent specimens lit from below. Designed for students to learn science for years of continued observations it has full optical glass elements metal framework two eyepieces (10X and 25X) 360 degree rotatable monocular head and coarse & fine focusing using either an outlet (adapter included) or two AA batteries (included). Offering five magnification settings 40X 100X 250X 400X and 1000X this microscope is perfect for academics in home school and from students in elementary to high school. with a retail value of $450. Features : A Great Affordable High Power Student Microscope with Coarse & Fine Focusing and Top and Bottom Lights! 10pc Slide Kit of Five Biological Specimens and Five Blank Slides Included 45 Degree Inclined 360 Degree Swiveling Monocular Head with Widefield Eyepiece Pen Incident Light and Transmitted LED Illumination Plain Stage with Clips and Stain Resistant Finish High Resolution Offers Sharp Images Five Magnifications 40X 100X 250X 400X and 1000X Single Lens Condenser and Disc Diaphragm Focusing Control Knobs on Both Sides All Coated Optical Elements Precise Ground Glass Lens Full Metal Mechanical Components Solid Metal Frame with Stain Resistant Enamel Finish Manufactured under ISO 9001 Quality Control Standard Excellent Five (5) Year Factory Warranty Unbeatable low price Guaranteed or the Difference Back! Satisfaction Guaranteed or Your Money Back! Specifications : Head: 45 degree inclined monocular Eyepieces: WF10X WF25X Objectives: 4X 10X 40X Condenser: single lens with 6-hole disc diaphragm Stage Dimensions: 3-1/2 x 3-1/2 Illumination: transmitted built-in LED; incident LED pen light Power Supply: 110V/60Hz (adapter included) or 2 AA batteries (not included) Packing List : One Monocular Microscope with Three Objectives and Top & Bottom Lights One Widefield 10X Eyepiece One Widefield 25X Eyepiece One Dust Cover Two Clips One Outlet Power Adapter One LED Pen Light Two AA Batteries One 10pc Slide Kit of Five Specimens and Five Blank User s Manual Package Dimensions: 15 x 10 x 6.5 Shipping Weight: 5 lbs