2-Pack Fresnel Lenses 150 * 150MM Focal Length 160MM Acrylic Magnifying Lens Solar Fresnel Fire Starter/Solar Heating/Solar Project/Scientific

2PCS/Pack square acrylic fresnel lenses Size:150*150mm, Focal length:160mm, Thickness:2mm, Material:PMMA(acrylic) Visual Aid for education - Great for

Fresnel Solar Concentrator Optical Acrylic Lens With 4 Array For Green Energy, industrial magnifying glass supplier

8.3 x 11.75 Large 3X Fresnel Lens Full Page Magnifier -- Solar Oven/DIY Projection TV Plans (1 Pack Premium Grade Large Lens)

2-Pack Fresnel Lens Φ150mm(5.91) Focal Length 70/80/90/100/120/140/200mm Acrylic Ultrathin Magnifier for Solar Heating, Solar Concentrator,fire Starter,spot Lens,Visual Education (Focal Length 120mm) : Industrial & Scientific

BUY A HUGE FRESNEL LENS GREEN POWER SCIENCE WOULD BE NICE ON THE DISCOVERY NETWORK SOLAR STIRLING ENGINES FRESNEL LENS PARABOLIC MIRROR

Diameter 300mm(11.81) with different options on focal length Thickness: 2mm, Material: PMMA(acrylic) Great for Visual Aid education, Solar heating

2-Pack Large Fresnel Lenses Φ300mm(11.81) Focal Length 360mm Acrylic Magnifier for Solar Heating,Solar Cooking,Visual Education. (Focal Length 360mm)

Fresnel Magnifying Lens Plastic Magnifier Sub A4 Sized 260 X 177mm Solar Firelighter

Fresnel Solar Concentrator Optical Acrylic Lens With 4 Array For Green Energy, industrial magnifying glass supplier

Diameter 80mm(3.15) with focal length 60mm Thickness: 2mm, Material: PMMA(acrylic) Great for Visual Aid education, Solar heating experiment, DIY

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

8.3 x 11.75 LARGE 3X Fresnel Lens FULL PAGE Magnifier - Solar Oven/DIY Projection TV PLANS (1 pack PREMIUM GRADE Large Lens) : Health & Household

2-Pack Round Fresnel Lens Diameter 400MM Focal Length 240mm Acrylic Lenses for Solar Collecting,Cooking Outside,Solar Energy Fresnel Lens Magnifier Solar Projector fire Starter : Patio, Lawn & Garden