คุณลักษณะ

• Work efficiency is greatly enhanced by the use of knock type.
• Since the body is made of aluminum, stone brush breakage can be reduced by falling or impact.
• It is similar in size to a pencil or ballpoint pen, so you can write without dropping the pressure.
• As an architectural writing instrument.
• Do not use this product for anything other than its intended purpose.
• Keep out of the reach of children.