2-Pack Fresnel Lens Φ230mm(9.06) Focal Length 110/190mm Acrylic Ultrathin Magnifier for Solar Heating,Solar Concentrator,fire Starter,spot

2pcs fresnel lenses Φ230mm with focal length 190mm Thickness:2mm, Material: PMMA (Acrylic) Visual Aid for education - Great for solar heating

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 Fresnel Lens 200 * 200MM Focal Length 100MM Acrylic Solar Magnifying Lenses, Solar Concentrator for Fire Starter/Solar Project/Scientific Research&Education/DIY Solar Heating by Six Seasons : Industrial & Scientific

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) : Health & Household

2-Pack Fresnel Lenses Φ110mm(4.33) Focal Length 60mm Acrylic Fresnel Magnifier for Solar Heating,Equipment Lens,Lighting Concentrator,Visual Education (Focal Length 60mm) : Industrial & Scientific

2-Pack Fresnel Lens Φ155mm(6.10) Focal Length 95mm Acrylic Ultrathin Magnifier for Solar Heating,Solar Concentrator,fire Starter,spot Lens,Visual Education (Focal Length 95mm) : Arts, Crafts & Sewing

Fresnel Solar Concentrator Optical Acrylic Lens, Taiwan High-Quality Industrial Magnifiers - FDA Approved

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

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