Top Spinning Base, 5" (125mm) Surface, 12mm Thick - Double Concave - Premium Optical Glass Lens, 20mm Focal Length - Optically True - Ground, Beveled Edges - Eisco Labs
Special Features
- Optical Concave Optical Glass Lens
- Double concave - 350mm Focal Length
- High quality, optical lens
- Huge 125mm diameter. Thickness at edge is approximately 12mm. Note, thickness varies as they are not designed to be consistent in that respect.
- Ideal for top spinning.
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