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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
Great value
Molecular Weight: 210
1- Porifera: mounted in one block is Sponge
5" diameter
1pcs Double Biconcave Lens | 75mm Diameter and 100mm Focal Length Dissecting Instrument Great valueHigh Quality Glass: Made from durable and high quality glass, this Double Biconcave Lens is designed to last and provide accurate and reliable results in a variety of scientific applications. 75mm Diameter: With a diameter of 75mm, this lens is perfect for use in a range of optical experiments, including refraction, reflection, and more. 100mm Focal Length: Featuring a 100mm focal length, this lens is an ideal tool for creating focused images and
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