Light rays bend to conform to the shape of the lenses. Suitable for optical experiments. You can get rainbow colors from a prism. They are glass, not plastic, very transparent.
π¬ AZHENRONG 14mm Glass Lab Accessories with Improved SEO
3 Review
π Certified Plastic Eclipse Glasses Shades
SEO-Optimized Ajax Scientific Mini Light Bulb
8 Review
Enhancing Learning with Optical Photography Triangular Teaching Education
KISSTAKER Removable Heart Visceral Educational Parts
π Musculoskeletal Anatomy Chart by Palace Learning
π§ Enhancing Anatomy Learning: Portable & Detachable Enlarged Anatomical Education Aid for Students
Heart Anatomy Poster Laminated Anatomical