These rings are high quality, on trend and made to mix and match by stacking with our other plain stackables, gem rings or sparkle wire rings. Our favorite feature is that they never turn or tarnish- wear them swimming, exercising, in a pool- no need to ever take them off! Material: This gold-filled ring is created with smooth 1MM round wire. Size: 4, 5, 6, 7, and 8. (Our most popular size is 7- be sure to order a few extra size 7’s!)