5-Pack Fresnel Lens Φ80mm(3.15) Focal Length 60mm

Diameter 60mm(2.36) with focal length 40mm Thickness: 2mm, Material: PMMA(acrylic) Great for Visual Aid education, Solar heating experiment, DIY

5-Pack Fresnel Lens Φ60mm(2.36) Focal Length 30/40/50/60/70/80mm Acrylic Fresnel Magnifier for Solar Project,Equipment Lens,Visual Education (Focal

Circular Precision Plastic Fresnel lens - 60mm Diameter

545mm x 325mm Crystal Clear Spot Fresnel Lens for Solar Projects: : Industrial & Scientific

Godox FLS5 Fresnel Lens 5'' Optical Lens with LB-03 Eight-Leaf Light Baffle for Godox LED Light ML30 ML30Bi ML60 ML60Bi : Electronics

Fresnel Lens, Diameter 150mm (5.9''), Focal Length 70mm, Acrylic Lens (Not Glass), for Physics Classroom Education, Solar Heating, Magnifiying.

5PCS/Pack fresnel lenses Size:Φ50mm, Focal length:40mm, Thickness:2mm, Material:PMMA(acrylic) Great for Visual Aid for education, solar heating

5-Pack Round Fresnel Lens Diameter 50mm(1.97) Focal Length 40mm(1.57) Acrylic Lens (not Glass) for Physics Classroom, Visual Education,Solar

5-Pack Fresnel Lens Φ80mm(3.15) Focal Length 60mm Optical Fresnel Magnifying for Solar Projects,Equipment Lens,Visual Education (Focal Length 60mm) : : Industrial & Scientific

2-Pack Fresnel Lenses 150 * 150MM Focal Length 160MM Acrylic Magnifying Lens Solar Fresnel Fire Starter/Solar Heating/Solar Project/Scientific Research&Education/Magnifier Lens by Six Seasons : Industrial & Scientific

Best Glide ASE Credit Card Size Fresnel Lens Fire Starter and Magnifier Lenses (3 Pack - Green) : Health & Household

5-Pack Fresnel Lens Φ60mm(2.36) Focal Length 30/40/50/60/70/80mm Acrylic Fresnel Magnifier for Solar Project,Equipment Lens,Visual Education (Focal Length 80mm) : Health & Household

Six Seasons 5-Pack Fresnel Lens Φ50mm(1.97) Focal Length 80mm Acrylic Fresnel Magnifier for Solar Project,Equipment Lens,Visual Education (Focal Length 80mm) : Industrial & Scientific