Introduction to stair handrails: In the courtyard, any item in the porcelain house will be hundreds of years old if you pick it up. Two official hat tubes have saw marks on their bodies, indicating their age. Most of the handrails at the entrance of the stairs are made of bowl bottoms with patterns, most of which are from official kilns. They are all signed "Made in the Longqing Year of the Ming Dynasty" and "Made in the Wanli Year of the Ming Dynasty". Zhang Lianzhi used such generous gestures to allow modern people to dialogue with history.