i can be long or short, i can be grown or bought, i can be painted or left bare, my tip can be round or square

What is a fingernail?

thank you

The riddle you mentioned is about something that can be long or short, grown or bought, painted or left bare, and has a tip that can be round or square. The answer to this riddle is a fingernail.

Fingernails can be long or short, depending on how regularly they are trimmed. They can also be grown naturally or can be bought as artificial nails. Fingernails can be painted with various colors or designs, or they can be left bare without any nail polish. Additionally, the tip of a fingernail can be shaped either round or square, depending on personal preference or style.