When you create an NFT, you have the option to add characteristics in the Add Details section.
You can add up to 32 fields. Each field can be up to 128 characters long.
At first you will see two fields. After you fill in the second field, two more fields will appear.
How to use the Add Details section
1. In the Create New screen:
a) Toggle Add Details on.
b) Add a characteristic to the first blank field. Characteristics can be up to 128 characters long.
c) After you fill in the second field, another two fields will appear.
d) If you fill in the fourth field, another two fields will appear, and so on. You can add up to 32 fields.