The Classic is a Square shaped Hoop puffy and hallow. This classic Hoop ear buckle square styling can be used to updated your ear stack. Stainless steel Strong. Snap Closure for easy and comfortable fit. Hallow for light weight Strong for your ear stacks and sits flat front to back. Stainless steel. 14K gold PVD plated. Click Closure for a seamless fit. Waterproof Hypoallergenic.