This website uses cookies to ensure you get the best experience on our website. [Learn More](https://www.hbarsci.com/pages/privacy-policy)

Got it!

[Skip to content](/content/products/fsc1029#MainContent/index.html)

(585) 360-2295 \| Mon–Fri 8am–4pm EST

**hBARSCI is now The Lab Stockroom**

Same team. Bigger catalog, faster shipping.

Free Shipping on Orders $100+ \| POs Accepted

Open media 0 in modal

Open media 1 in modal

Open media 2 in modal

1 / 3

Eisco Labs \|  SKUFSC1029

# Optical Glass Lens for Top Spinning Base, 3"

Double-concave glass lens at 3-inch diameter and 200mm diverging focal length, ground to polished beveled edges and usable as a top-spinning base in secondary mechanics demonstrations.

Regular price

Sale price$12.59Regular price~~$17.63~~

Unit price

/per

Pay over time for orders over $35.00 with

Learn more

QuantityDecrease quantity for Optical Glass Lens for Top Spinning Base, 3&quot;Increase quantity for Optical Glass Lens for Top Spinning Base, 3&quot;

Add to cart

Buy with

[More payment options](/content/products/fsc1029#/index.html)

- In Stock **(152)**

- Free US Shipping $100+30 Day Free Returns

## Product Description

This optical glass lens measures 3 inches (75mm) in diameter and approximately 12mm thick, with a 200mm diverging focal length. The double concave lens is made from highly polished glass with ground beveled edges.

Suitable for physics classroom optics demonstrations of light divergence and concave lens behavior. The smooth concave surface also makes this lens ideal for use as a top-spinning base.

## Specifications

- **Material**: Glass
- **Dimensions (L × W × H)**: 3.00" × 4.00" × 0.50" (7.62cm × 10.2cm × 1.27cm)
- **Weight**: 0.30 lbs (136g)

## Shipping & Returns

**SHIPPING**

Ships from Rochester, NY. Orders received by 1:00 PM EST M-F typically ship same business day. Free US shipping on orders over $100. Expedited options available.

**RETURNS**

30-day return window. Unused items receive a full refund; used items are eligible for store credit or exchange. Return shipping is paid by the customer. Clearance items are final sale. Defective products? Contact us directly.

[View full Shipping & Returns policy](/content/pages/returns-and-refunds "Returns and Refunds"/index.html)

Payment & Security

Payment methods

- American Express
- Apple Pay
- Diners Club
- Discover
- Google Pay
- Mastercard
- PayPal
- Shop Pay
- Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

### Optical Glass Lens for Top Spinning Base, 3"

Regular price

Sale price$12.59Regular price~~$17.63~~

Unit price

/per

Add
