These vintage glass hearts were made in Czechoslovakia in molds during the 1980s. The heart is 7.5 mm from hole to hole and 8 mm wide at the widest point. The bead channel is small and will accommodate up to a 0.5 mm string. The hearts have an opaque silver coating on one side and the other side is clear. Because of the reflection from the silver coating, the clear side reads as light silver. Price is for 10 beads.