Authentic and purchased through Popmart THE MONSTERS Pin for Love Series-Letter Pendant. New sealed pouch but box was open to verify letter. They look adorable as bag charms or can be used to personalize anything. The two rings do open so you have options. SIZE: Alloy(A-M): 40-61 mm/1.57-2.4inches; Letter(A-M): 77-114mm/3.03-4.49inches. Alloy(N-Z): 40-66mm/1.57-2.6inches; Letter(N-Z): 77-114mm / 3.03-4.49inches MATERIAL: Shell-Cotton, Stuffing-Polyester, Accessories-Polycester/Zinc Alloy. *Due to differences in measurement methods, the actual measurements may vary within a normal range of 0.4 - 1.2 inches. Actual product size and color may appear different due to lighting, display screen.