Here are some elements of an effective title:
Use descriptive keywords to clearly and accurately convey what you're selling. You can use up to 80 characters.
Include the item's brand name, artist, or designer.
Include item specifics. For example, include size, color, condition, and model number.
State exactly what your item is, even if your title repeats the category name.
Don't use multiple synonyms or plurals. It's not needed for search and may make your title less attractive to buyers.
Omit punctuation marks and asterisks.
Don't include words like "wow" or "look." Buyers don't search for words like these.
Use correct spelling.
Don't worry about creating a grammatically correct sentence.
Don't overuse acronyms.
Don't use all caps.