When choosing Overnight shipping or 2-day shipping charges are only estimated at checkout based on the price of the item but may need to be adjusted (up or down) based on the size and weight of the product after checkout.
This is ONLY if you select to have Overnight or Guarantee 2-day shipping.
The above does not apply to the standard shipping option.
**Shipping Outside the Continental U.S. (i.e. Hawaii, Alaska, Puerto Rico) may require additional postage**