These hoop earrings are made of sterling silver 925 and coated with 18k gold. At 10mm, they are small earrings with a minimalist design that fits snugly against the ear, making them feminine. As they are hoop earrings, there is no need for a catch, so you don't have to worry about losing it. These are adult-cute earrings that can be used for a wide range of occasions, from casual to formal. They will be carefully packaged, but will generally be simply wrapped. Thank you for your understanding.