US$ 24.99
Built for broad introductory microscopy
Hand-operated vacuum pump with a 200mm copper pump plate and rubber seal
Economical minute timer setting intervals up to one hour via a top knob
a compound unit for demonstrating multi-rope mechanical advantage in physics activities
INDUSTRIAL STRENGTH || Made of high quality
Bottom Sampling Net for Aquatic Specimens Material_LDPE Built for broad introductory microscopyBuilt for stream and pond bottom sampling, this heavy rim net sifts benthic invertebrates, sediment dwellers, and bottom feeding larvae from aquatic substrates.
US$ 24.99
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US$ 24.99