"PARKWAY PLASTICS, INC."

Strong polycarbonate boxes for storage of cryogenic vials.

Help students make connections in math with these colorful, engaging manipulatives. Plastic rods in ten different sizes and colors can each be assigned a different unit of measure.

Smooth-running ball-bearing clamp pulley for use with inclined planes, force experiments, or demonstrations of work and machines, this durable, lightweight plastic pulley fastens to surfaces up to 18 mm thick.

These high quality loupes feature a 25mm glass lens mounted in a sturdy black plastic frame.

This environmentally friendly danger safety sign is 100% recyclable as a number two plastic.

Class A volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, polypropylene stopper, and blue or white enamel markings.

Mounted on molded plastic base, the unit consists of a base into the top of which may be screwed one of a set of four vases of differing shapes. An aperture in the bottom has a thin rubber diaphragm across it, bearing upon the short arm of the lever pointer. A moveable index on the vertical rod enables the height of water in vases to be set at same level. The apparatus is mounted on moulded plastic base that measures 25 x 17.5cm. The experiment is performed by screwing in each vase, in turn, and filling with water to the same level. It will be seen that the given height of water will result in the same deflection of pointer whatever shape of the vase.

Cylindrical dropping funnel made of borosilicate glass with a 100 ml capacity, equipped with a 19/26 plastic stopper and a needle valve stopcock for precise control during liquid dispensing, ideal for experimental setups and chemical processes.

Ungraduated Gilson separatory funnels with ground cones, plastic stoppers, and glass key stopcocks, made of borosilicate 3.3 glass.

This pair of North-South Bar Magnets is affordable and colorful.

Explore shapes, patterns, area, and more.

Provides a secure hold.

This adjustable, re-usable plastic tape dispenser accommodates tapes with 1" or 3" cores and widths of 1/2", 3/4", or 1" wide tapes.

Hard plastic rods for paper versions to clip onto the top and bottom of your chart.

Plastic, tubular Newton spring balances. Dual scale labeled, perfect for classroom or laboratory use, physics experiments and demonstrations.

Comprised of a thick plastic base with four rubber feet, along with with an 18cm diameter aluminium plate with an insulating handle.