Model Functional Lung Apparatus, unique and easy-to-use model features parts that replicate the actions of respiration, Easy to Assemble, includes an acrylic bell jar, Y tube, two balloons, rubber diaphragm with a knob for ease of movement, and an instruction manual
Deluxe Box Magnifier, Ideal for Observing Large Insects, Base size: 3 1/2in L x 3 1/2in W x 2 3/4in H, Lens diameter: 2 1/4in, View specimens up close, then set them free. The base of the 3X magnifier covers live specimens for hands-free observation, Clear plastic
Tubing Flint Glass 60 cm L x 10 OD x 1.20 mm Wall 1LB, for easy bending, blowing, and sealing of soft glass apparatus. Wall uniformity controlled within +/- 0.05 mm. Tolerance of the outside diameter is +/- 0.20 mm
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