Double-Concave Glass Lens 38mm Diameter 20cm Focal Length for Physics & STEM Experiments, Pack of 20 By GSC International Inc.

This Double-Concave Glass Lens by GSC International Inc. is made from polished optical glass and features a 38mm diameter with a 20cm focal length. Sold in a pack of 20 lenses, this product is ideal for educational use in physics classrooms, STEM labs, and optical testing. Whether for studying light refraction, optical demonstrations, or general science experiments, these lenses provide clarity and precision.

Crafted for durability and reliability, the lenses ensure consistent performance in repeated experiments. The bulk packaging makes it ideal for group studies, classroom settings, or large-scale scientific projects, making this lens a must-have tool for educators and professionals alike.

Key Features:

• Polished Optical Glass: High-quality glass for clarity and precision in optical studies
  Full Dimensions: 38mm diameter x 20cm focal length
• Pack of 20 Lenses: Ideal bulk packaging for classrooms, group studies, or STEM labs
• Perfect for Physics & STEM: Excellent for light refraction, optical testing, and physics experiments
• Durable & Reliable: Long-lasting polished optical glass for repeated use
• Versatile Application: Suitable for educational purposes, scientific research, and hands-on experiments