Sterling silver hoops stud earrings. Material: sterling silver. Earring size: ∅3.0mm to ∅6.0mm approximately. gOOdAy SeRieS. 7 days a week, 7 pieces a pack. Choose your day, and choose your life, every day is a good day. Have a gOOdAy. Have a good week! To keep the good condition, clean with neutral detergent or water (use soft brush if necessary) after wearing, wipe dry and leave in the air for about two minutes (vapour off) and seal in a zipper bag, or polish with the silver cloth.