"solar binocular"
Universal Indicator Color Charts
Easily determine pH with the universal indicator chart.
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Bruening Magnifier Otoscope, OR Grade, Sklar
These are constructed of stainless steel.
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2-Color Counters
This great item can be used to teach probability, counting, sorting, and basic operations.
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Colored Paper Clips
Vinyl-coated clips of six colors in a compartmented box.
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Colored Beads
Sorted colors. Plastic beads have 3.5 mm hole and 13 mm diameter. Set of 216.
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Colored Gravel
Attractive Bottom Cover Enhances Natural Filtration and Nitrogen Cycling. Gravel contains no lead or chrome and won’t change the pH or chemistry of the tank. Pebble sizes up to ¹/₄" diameter.
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Utility Shears
Cut everything from paper to 24-gauge stainless steel with these shears.
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Hooks Collars
The Hooks Collar is constructed with a ring that fits over a support stand rod, a hook and thumb screw.
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Boucheron Ear Specula, OR Grade, Sklar
Round Boucheron ear specula are chrome-plated stainless steel.
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Color Mixing Apparatus
Illuminate the variances between additive and subtractive color mixing