Pentel Ain ultra-fine mechanical pencil lead brings an unprecedented high-performance writing experience!
It combines smoothness, bending resistance, stain resistance and other excellent properties to meet professional needs.
It uses a new manufacturing process and special oil to ensure that graphite and carbonized resin decompose smoothly when writing, bringing a smoother writing experience.

Its efficient design allows the lead to be operated with one hand and prevents spills. Whether you choose different thicknesses from 0.3 to 0.9 or various hardnesses from 4B to 2H, they are perfectly suitable for all Pentel mechanical pencils.
The Pentel Ain refill has a low-key and elegant design. After removing the label after purchase, the simple black appearance is suitable for pen cases and office environments.