Members Use Your Membership I.D. at Checkout For 10% Off.  See Details.

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Applying promo codes: If you have a promo code, enter it in the box labeled "HAVE A PROMO CODE?" and click "APPLY." You may enter the promo code in your shopping bag any time before or during checkout. Only one promo code may be used per transaction.

MSI Member Discount: Enter your membership ID at checkout now through December 11th and receive 20% off your order. Discount is off original prices, applies pre-tax and does not apply to shipping. Cannot be used in combination with other offers or promotions. For details about joining MSI membership to go Museum of Science + Industry Membership. 

Please Note: Orders ship within 1-2 business days. Please be aware that some items have a longer lead time to prepare for shipment. After this initial period to prepare your order for shipment, UPS will deliver your order with the shipping method selected during checkout.

If Requesting Express Shipping: Orders placed before 12:00 p.m. C.T. on Thursday will ship Friday, orders placed after 12:00 p.m. C.T. will ship the following Monday.