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

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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 60mm) : Health & Household

2-Pack Fresnel Lenses 280 * 280MM Focal Length 600MM Acrylic Optical fresnel lens Fire Starter/Solar Oven/Scientific Research&Education/DIY Projection TV PLANS By Six Seasons: : Industrial & Scientific

It is made of Optical PVC and weights less than an ounce. 4X Magnification - The Best Glide ASE Fresnel Lenses provide up to 4X Magnification to make it easier to read small print or in low light situations. Emergency Fire Starter - The Best Glide ASE Fresnel Lens works as a survival fire starter on sunny days to light your tinder.

Best Glide Ase Credit Card Size Fresnel Lens Fire Starter and Magnifier Lenses (3 Pack - Green)

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

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

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

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

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

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 30mm) : Health & Household

Diameter 60mm(2.36) with focal length 60mm 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

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 60mm) : Health & Household

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

5-Pack Fresnel Lens Φ80mm(3.15) Focal Length 50mm Acrylic Optical Lense for Solar Heating,Equipment Lens,Visual Education (Focal Length 50mm) - Yahoo Shopping