【Contents】 ・ Techniclick 0.5mm Orange This is an overseas model, not sold in Japan. It's the overseas version of the side-knock mechanical pencil "Pianissimo," which was released in 1996 and became a sensation. It has a knock button located where you can easily reach it with your thumb, allowing you to advance the lead without changing your grip. ・ Pianissimo 0.5mm (Japanese domestic version / Clear Black) This is also a standard model with a side-knock mechanism. It has a transparent body, allowing you to see the internal mechanism. 【Condition】 Both show no visible scratches. I am selling these to organize my collection. This is a great opportunity for those who like side-knock mechanical pencils or are looking for a collection of Pianissimo models.