Lan Wangji will take both, but it will be the one with the bell that he wants him to wear. He lets the smiling clerk know which ones he wants, then undoes the clasp and open it up, to put it on him.

"You don't have to wear it all the time. Just wear it, because you'll know it pleases me and that whenever you wear it, you'll always look good on it."

He adjusts the collar around him, so it's not too loose. Just the right fit, and lock the clasp in place. "How is it? Is it comfortable?" He wants to make sure that he likes it.