WildKlass Jewelry Grand Essentia 316L Surgical Steel Belly Button Ring Grand Essentia 316L Surgical Steel Belly Button Ring Lightweight and comfortable to wear. Material: 316L Surgical Steel with High Quality Cubic Zirconia Thickness : 14GA (1.6mm), Length : 3/8 (10mm), Width (15mm), Length (31mm) Exceptionally High Quality Jewelry!