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ZEBRA SHARBO X LT3

The ZEBRA SHARBO X LT3 is the most recommended multi-function pen for Hasamu A4. It is used by adding your favorite mechanical pencil + ballpoint pen two-color refills to the body of the pen, which...

MUJI Ballpoint pen, nock type, body, aluminum

MUJI knock-off ballpoint pen. The shaft diameter is slim, 9.8mm at the largest part (actual measurement), and just fits in the pen holder of the Hasamu A4. Compared to the Caran d'Ache 849, which...

CROSS Tech3+

The CROSS Tech3+ is a multifunctional pen with three switchable functions: 0.5mm mechanical pencil, black, red, and two-color ballpoint pen, plus a stylus part for tablets. The shaft diameter is s...

ITOYA Helvetica 3in1 Multifunctional Pen

Since the Hasamu A4 can only hold one pen, many people prefer to use a multifunction pen, and the Helvetica 3in1 is a multifunction pen with a slim 8.8 mm shaft diameter that can switch between 0.5...

rOtring 600 3in1 multifunction pen

Since the Hasamu A4 can only hold one pen, many people would like to use a multifunctional pen. Among the many multifunction pens available, the rOtring 600 3in1 is a particularly high-quality mul...

rOtring rapid PRO 2.0 wick holder

Limited to 10mm shaft diameter Hasamu A4 Introducing the best pen for pen holders of rOtring rapid PRO 2.0.2mm lead holder. It is a clutch-nock type that feeds out a certain amount of lead with ea...

Caran d'Ache Ecridor and 849 ballpoint pen

The silver pen in the back is a vintage Caran d' Ache Ec ridor.Simple design in the shape of a pencil. Solid weight and durability. And it should be noted that the knock is quiet and smooth with a...