CHUNKY HOOPS EARRINGS - Even if they are chunky, they are extremely light, which makes them very comfy to wear. 

304 Stainless Steel Hoop Earrings, HYPOALLERGENIC - Long lasting plating

If put under water, the gold will stay for very long. If you are careful with them and make sure you protect them from chemicals and water, they'll last a lifetime. 

Size: 24x23x7mm