Three leads in one pen!! Water soluble, can be washed out or erased with any fabric eraser. Extra fine lead for marking on fabrics. Eraser included on the top of the pen. For patchwork, quilting, garment, clothing, sewing. Twist erase, long lasting. Refill with: 91474, 91475, 91476, 91477 or 91478 (Pink, Grey, Yellow, Green, White). Ceramic colored leads, strong and colorants can not penetrate into the fabric.