This is a cleaning swab for wind instruments. Please note that the fabric is a bit thick, so it is not suitable for trumpets or cornets. A weight is inserted at the tip of the string. The length of the string, including the weight, is approximately 55cm. Since it is a non-brand product, we are able to offer it at a significantly lower price. To keep the price down, we will ship via regular mail. Please understand that there is no compensation for loss or damage. Thank you for your consideration.