art small warped head elbow pen calligraphy signature hard-tipped pen calligraphy curved pointed straight frosted pen 35 degrees 45 degrees

black matte yellow frosted blue matte red matte purple matte powder morandi green retro blue haibao blue maca blue maca powder maca green black gold new-style art pen

35-degree bent tip 45-degree bent tip medium-thin straight tip 0.5