These are three metal pen holders with symbols (∞), alphabet (MK), and numbers (7) as bases. The metal does not react to magnets and is believed to be brass (this is not guaranteed). It is believed to be vintage, but the exact age is unknown. Size: See photo 5 Weight: "∞": approx. 179g "MK": approx. 220g "7": approx. 139g There is a red felt-like material attached to the back, and a part of it is peeling off (photo 3). Not all damaged areas are shown in the photos. The color of the actual product may appear slightly different from the photos due to screen lighting and color rendering environments. Please understand that this item is a used item that has been stored for a long time before purchasing.