-Reversed revolving quad nosepiece -- -4X, 10X, and 40XR DIN objectives -- -Stage focus -- -Coaxial coarse and fine focus controls -- -Plain stage, 6 1/3" x 5 1/3" with spring clips -- -Five aperture disc diaphragm -- -B . . .

This free standing magnifier allows enhanced viewing of slides, petri dishes, multi-well plates, gels or text. The precision molded lens offers 1.75x magnification. The unique stand allows the magnifier to be placed over . . .

These handy, folding magnifiers were designed to examine cloth fabrics but have many other uses in situations where a small magnifier is required. The 2.5 cm base has a square aperture. . . .

This high-quality glass 5x magnifier conveniently fits over a standard Petri Dish, making it easy to review the contents of the entire dish. . . .

A high quality Eye Loupe at an affordable price! -- The 27mm glass lens in this Eye Loupe is mounted in a black plastic loupe. The magnification is 5x with a 51mm focal length. . . .

A heavy base and flexible, chrome-plated arm (30 cm long) provide firm support for the optical glass lens. -- The 10 cm diameter lens is mounted in a chrome plated, brass frame. A durable ball swivel provides free moveme . . .

The lens system of this magnifier (2.5 cm diameter lens) screws up and down in the tripod for simple focusing. The large, clear field makes this magnifier ideal for dissection work and use on a laboratory table. . . .

Teachers will find this magnifier mighty handy! -- The clear field lens (1 cm diameter) is made of optic glass, and the lens holder folds into an attractive metal case. A ring on the case allows you to fasten the magnifi . . .

Designed for middle school students, this hand-held microscope is well-suited for outdoor studies. -- It can be used at 50x without the compounding lens, or as a 100x - 200x zoom microscope with the lens. Students can us . . .

Magnifier which can give 8 magnifications from 5x-12x. Simply turn the red protection cover to open magnifier compartment. You turn side wheel to select magnifying lens, totally 8 different magnifications for selection. . . .