National 440-440PLL Series Zoom Stereo Microscopes — Dual LED Precision for Labs, Industry & Education Head Type:Binocular Adjustable aspiration and dispensing speeds

Adjustable aspiration and dispensing speeds further improve accuracy across a wide range of liquid viscosities

the kit includes 35 custom plastic models that simulate virus structures

metal fabrication

this individually certified cylinder features a double metric scale for enhanced readability

Ideal for earth science classrooms

National 440-440PLL Series Zoom Stereo Microscopes — Dual LED Precision for Labs, Industry & Education Head Type:Binocular Adjustable aspiration and dispensing speedsThe National 440 440PLL Series combines precision optics, dual LED illumination, and rugged construction for exceptional 3D visualization in laboratories, classrooms, and industrial inspection settings. Offering a continuous zoom range of 7. 5X45X, these microscopes deliver sharp, true color, distortion free imaging across a variety of specimen types. 440 440PLL (Binocular) Designed for versatility and durability, this binocular model features dual