The Tajima Replacement Cotton Perfect Sumitsubo 21 is a Japanese replacement cotton designed for several Tajima chalk line models. Made from highly absorbent cellulose sponge, it ensures even distribution of sumi ink for clean and precise lines.

This official Tajima maintenance part helps maintain optimal performance of the chalk line while extending its lifespan. Its absorbent material facilitates smooth and consistent marking on both construction sites and in workshops.