Crystal Blue Push Erasable Refill with Erasable Pen and Erasable Stick

https://www.gelpenfactory.com/product/pen-refill/

Crystal Blue Push Erasable Refill with Erasable Pen and Erasable Stick is a high quality writing instrument designed to meet the needs of modern life. This product uses advanced ST pen tip technology, combined with erasable ink characteristics, to provide users with a new writing experience. Here is a detailed description of this product.