apop nyc Sterling Silver 2mm Band MiDi Ring Stacking (Size 2 - Size 4) Unisex .925 Sterling Silver 2mm Flat Band Smooth Polished finish Stackable Eco-Presentation by apop nyc (Jewelry Pouch) silver stackable thin band, made of .925 sterling silver. ideal for stacking with other silver rings, 2mm. wear them above the knuckle modern simple band