The product description must be complete
The customer must be cleanly and unambiguously informed about the essential characteristics of the item before placing an order.
Since your customer can not inspect the goods before buying, the correct and complete description, as well as the presentation with pictures is important. Product defects that reduce the value of the goods must always be truthfully stated.

The product description must also not be misleading, for example, contain incorrect information about availability, possibility of use, type, design, quantity or similar.  
The product images or descriptions you use for the advertisements must not infringe the copyrights of others
(e.g. taking over photos of the manufacturers without their permission).