Return Address Labels straight corners or rounded?? Confusing

[LauraLee]

Why does Zazzle have rounded corners on the product image and the in situ image, yet on the full sheet have straight corners?  There are no choices, or did Zazzle forget to make that option?  It's very confusing. 

For myself, I wish there were the two options.  But makes matters worse, us having to make our own mockups for them.  

Which are right??  This needs to be addressed 😏

[ColsCreations]

The design is overprinted on the sheet as rectangles so it looks like straight edges but if you look closely you can see that when you peel them off the sticker by itself has rounded corners. You can see this in some of the review pictures too if you zoom in on them.