Generally, on occasions such as marriage and business, men should wear a tie clip on the tie to keep the tie straight.

Tie clips were originally designed to keep the tie snug and drooping, so that the tie would not hang straight to the ground or fall into the soup when bending over or eating.
Modern tie clips are more of an accessory. Tie clips can reflect the gentlemanly demeanor of men, appear more tasteful, and show the fashion of modern people. -It is often needed when wearing a suit on general occasions. It can keep the tie more straight and the overall shape more beautiful.
