This silky smooth glass tab is threaded through a 2mm diameter brown silk cord. The cord can be tied at the back of your neck for your favorite length. The pattern, "Mameshibori" is derived from a traditional Japanese fabric using a tie a knot. This case, many of glass bars are a made from a round yellow colour bar wrapped with an ivory coloured glass, then cut,laid, fused and polished. It is truly one of a kind! The size of glass measures 2.3cm x 5.5cm x 8mm.