The Wide-Vision (sometimes called the Extended-Vision) caboose was designed so that the crews sitting in the cupola area (the top of the caboose) could see past the top of the taller train cars. This design was used and saw service on most U.S. railroads.
You have copied the placement for the Product Page.
Go back to the App Embeds section, and in the Paypal Advanced Settings, paste the copied value into the Product Page field and click the 'Save' button in the top right corner.