A writing instrument for use with a plurality of writing instruments stacked in layers has been developed. However, the writing instrument is required to be laminated and the writing instrument inserted into the outer covering has difficulty in identifying which color is stacked. In addition, when one of the laminated writing instruments is lost, the supporting force of the writing instrument is lost and the writing instrument can not be used. A stacking pen is constituted by a pen body having a push button provided at an upper portion thereof and a pen tip cover at a lower portion thereof, and the push button is provided with a protrusion / When the plurality of stacked pens are stacked by the stacking means so that a plurality of pens can be stacked on each other, It is easy to combine, color identification of the stacked pens is easy, replacement of the stacking order is easy, and a strong bonding force is obtained even when stacked layers are bonded without a shell.
展开▼
