Two Cubes Key Ring A superb Sterling Silver dice key chain. This great key chain is made of two silver dice attached to a key chain. This piece was made in the electroforming method. Beautiful in its simplicity this key chain will make a great gift for a friend and will honor the keys hung to it. Measurements : Marks : Length: 4in. / 10.16cm. 1 inch = 2.54cm 925 for sterling silver. Weight : : 21gr. / 0.67oz.