1pcs Biconcave Lens | 75mm Diameter and 7.5CMS Focus Resistor Box Includes: 50 Holes Plastic Test

Includes: 50 Holes Plastic Test Tube Racks

Convenient and practical: With a size of 6

principles of AC and DC generators Simply turn the handle to produce the current which illuminates the light bulb and turn the fan

Teachers guide

Case of 12 samples of elements found in the Periodic Table

1pcs Biconcave Lens | 75mm Diameter and 7.5CMS Focus Resistor Box Includes: 50 Holes Plastic TestHigh Quality Glass: Made from durable and high quality glass, this 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. 7. 5CMS Focus: Featuring a 7. 5CMS focus, this lens is an ideal tool for creating focused images and light beams.