Sistema Ring (Deco-Slits, Layered, 9mm, DA+PA) from Parts of Four. DA: Dirty Sterling. Sterling silver, dipped in acid to create a subdued surface. Results will never be identical, and this nuance / variation should be seen as a characteristic of the uniqueness of the product. PA: Polished sterling silver. Dimensions: Ring band width: 9 mm Ring band thickness: 3 mm Weight: 20 grams (size 9) Composition: Dirty sterling silver; Polished sterling silver Made in Bali SKU: 1301-3-DA+PA