Specification Brand : Six Seasons Label : six seasons technology Manufacturer : six seasons technology Model : SSFNL230X230 ProductGroup : Single Detail Page Misc ProductTypeName : MAGNIFIER Publisher : six seasons technology SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/61LUZq+oSiL._SL75_.jpg SmallImage_Width : 75 Studio : six seasons technology Title : 2-Pack Fresnel Lenses 230x230MM Focal Length 300MM solar fresnel magnifier lens Fire Starter/Solar Oven/Scientific Research&Education/DIY Projection solar heating By Six Seasons