I can't get them to create beautiful rainbow light spectra! I have tried. Maybe I'm not doing it right? However, they are very well made. NO sharp edges and clear. I decided to leave them anyway as they are interesting. Maybe one day I'll find out!
π Certified Plastic Eclipse Glasses Shades
3 Review
Lines Inch Diffraction Grating Sheet
π Diffraction Grating Slides by Rainbow Symphony
πΈ Unleash Your Creative Potential with the Young4Us Triangular Photography Teaching Spectrum
π Musculoskeletal Anatomy Chart by Palace Learning
π§ Enhancing Anatomy Learning: Portable & Detachable Enlarged Anatomical Education Aid for Students
KISSTAKER Removable Heart Visceral Educational Parts
Heart Anatomy Poster Laminated Anatomical