Bending angle: this is related to personal writing habits. Generally speaking, the correct pen holding posture is that the thumb and forefinger hold the pen, the middle finger assists, and the ring finger and the little finger bend. The penholder usually leans against the root of the index finger (the largest joint), and the finger is about one inch away from the pen tip. Generally speaking, calligraphy lovers like to use more than one stroke, that is, they can write at ordinary times or create calligraphy, thus making use of the bending angle of the artist's pen tip. But if the finger is a little longer from the tip of the pen, or the pen is a little closer to the tiger's mouth, you can write big characters, so the bending angle is about 50 degrees (when trying to write, the pen can write small characters by the root of the index finger and big characters by the tiger's mouth). Too small a degree will make it inconvenient to write big characters, and most artistic pens on the market are very curved (some even reach 90 degrees). The consequence of this pen is that it is impossible to write small words every day, or almost.
Whether it's a golden tip: Based on personal experience of using an artistic pen, never use an artistic pen with a golden tip. Its elasticity is not suitable for an artistic pen. An artistic pen achieves its effect by controlling the contact surface, while a straight-pointed pen is more suitable for a golden tip. Its elasticity can help you realize more obvious thickness changes, especially for letters and official documents. Because the quality of plastic products of some manufacturers is not up to standard, cracks often appear in the grip area of original plastic products. Most pens are made of steel, copper or other alloys. Be careful not to choose too smooth one, otherwise it will also affect the feel of holding the pen, and writing for a long time will also lead to fatigue.