Glass, optically worked, with ground edges. 50mm diameter x 30cm Focal Length
Note: Products being sold are not toys. They are for laboratory / educational use only. They are not for use by children 12 & under.
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100% Satisfaction Guarantee: At Mansion Schools, we want to be sure that the item you choose is the right one for you. Within 30 days of delivery of your order, you may return any merchandise purchased from Mansion Schools in its original condition with your email order confirmation or packing slip. Restocking fees may apply. On items over $275 shipping within the US, we will even arrange free pick up or pay for returns shipping.