Pay in 4 interest-free payments of $6.25 Learn more
Ships within 48 hours · Estimated delivery Aug 27 - Sep 1
Sphalerite
For visual demonstration of electric fields
These pans won't rust
the model can focus an image on the retina
Needle Length 11cm
1pcs Double Biconcave Lens | 75mm Diameter and 300mm Focal Length Instruments SphaleriteHigh 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. 300mm Focal Length: Featuring a 300mm focal length, this lens is an ideal tool for creating focused images and
