--- product_id: 2632363 title: "Eisco Optical Glass Concave Lens, 200mm Focal Length, Top Spinning Base, 3\"" brand: "eisco" price: "₨444" currency: SCR in_stock: true category: "Eisco" url: https://www.desertcart.sc/products/2632363-eisco-optical-glass-concave-lens-200mm-focal-length-top-spinning store_origin: SC region: Seychelles --- # dual-use concave spinning base 200mm focal length precision beveled edges for safe handling Eisco Optical Glass Concave Lens, 200mm Focal Length, Top Spinning Base, 3" **Brand:** eisco **Price:** ₨444 **Availability:** βœ… In Stock ## Summary > πŸŒ€ Spin Science Into Your Lessons with Precision & Style! ## Quick Answers - **What is this?** Eisco Optical Glass Concave Lens, 200mm Focal Length, Top Spinning Base, 3" by eisco - **How much does it cost?** ₨444 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/2632363-eisco-optical-glass-concave-lens-200mm-focal-length-top-spinning) ## Best For - eisco enthusiasts ## Why This Product - Trusted eisco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Dual-Function Design:** Smooth concave surface doubles as a top-spinning baseβ€”engage students with hands-on physics fun. - β€’ **Compact & Lightweight:** 3-inch diameter and featherlight 0.01 kg design fits seamlessly into any science kit or workspace. - β€’ **Crystal-Clear Refraction:** Optically worked glass ensures sharp, distortion-free demonstrations every time. - β€’ **Precision 200mm Focal Length:** Engineered for reliable, predictable diverging lens experiments in labs and classrooms. - β€’ **Safe & Durable Craftsmanship:** Beveled, ground edges reduce risk while maintaining long-lasting optical clarity. ## Overview The Eisco Optical Glass Concave Lens features a 200mm focal length double concave design crafted from optically worked glass. Its beveled edges ensure safe handling, while the unique concave surface doubles as a smooth spinning top base, making it a versatile, durable, and precise tool ideal for educational and professional optical experiments. ## Description Eisco Optical Glass Concave Lens, 200mm Focal Length, Top Spinning Base, 3" | Optically Worked Glass for Clearer Refraction Demos, 200 mm Diverging Lens, Base for Spinning Tops, Beveled Edges: Science Classroom Optics Kits: desertcart.com: Industrial & Scientific ## Features - Eisco's Precision Optics: Eisco's optical glass concave lens enhances classroom experiments with its double concave design. Its finely polished glass surfaces ensure clearer and more precise refraction demonstrations for educators - Predictable Lens Demonstrations: With a 200 mm focal length, this diverging lens allows for accurate and reliable setup of optical experiments. Its spherical shape makes it ideal for both professional labs and educational settings - Top Spinning Bonus: The smooth concave surface doubles as a base for spinning tops, adding an engaging yet educational element to your physics lessons. This dual functionality makes it a versatile addition to any science kit - Easy Handling Design: The ground and beveled edges of this lens reduce sharpness for safer handling in the classroom. Constructed from optically worked glass, it's designed for durability and ease of use in any learning environment - Crafted with Quality: Made from optically worked glass, this lens exemplifies Eisco's commitment to quality craftsmanship. Its optical glass disc concave shape ensures it withstands rigorous use while maintaining clarity ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00CLC7V5C | | Best Sellers Rank | #115,238 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #47 in Science Classroom Optics Kits | | Brand Name | EISCO | | Color | Transparent | | Customer Reviews | 4.5 4.5 out of 5 stars (309) | | Global Trade Identification Number | 00849230033965 | | Item Dimensions W x H | 3"W x 3"H | | Item Highlight | Optically Worked Glass for Clearer Refraction Demos, 200 mm Diverging Lens, Base for Spinning Tops, Beveled Edges | | Item Weight | 0.01 kg | | Manufacturer | Eisco | | Material Type | Glass | | Model Number | FSC1029 | | Number of Items | 1 | | Part Number | FSC1029 | | UPC | 849230033965 | | Wide End Diameter | 3 inches | ## Product Details - **Brand:** EISCO - **Color:** Transparent - **Material:** Glass - **Product Dimensions:** 3"W x 3"H - **Wide End Diameter:** 3 inches ## Images ![Eisco Optical Glass Concave Lens, 200mm Focal Length, Top Spinning Base, 3" - Image 1](https://m.media-amazon.com/images/I/41LValVw36L.jpg) ![Eisco Optical Glass Concave Lens, 200mm Focal Length, Top Spinning Base, 3" - Image 2](https://m.media-amazon.com/images/I/41fAcy2UJfL.jpg) ![Eisco Optical Glass Concave Lens, 200mm Focal Length, Top Spinning Base, 3" - Image 3](https://m.media-amazon.com/images/I/41k6cg2riJL.jpg) ![Eisco Optical Glass Concave Lens, 200mm Focal Length, Top Spinning Base, 3" - Image 4](https://m.media-amazon.com/images/I/81XT8AFCh6L.jpg) ## Frequently Bought Together - EISCO Optical Glass Lens, 3" (75mm) - 200mm Focal Length - Ground, Beveled Edges - Use as Top Spinning Base - ForeverSpin Stainless Steel(Brush-Finish) Spinning Top - World Famous Spinning Tops --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sc/products/2632363-eisco-optical-glass-concave-lens-200mm-focal-length-top-spinning](https://www.desertcart.sc/products/2632363-eisco-optical-glass-concave-lens-200mm-focal-length-top-spinning) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-10-01*