The seat is made of HDPE blow molding at one time, with good material stability, firm structure, long service life, sufficient elasticity, and impact resistance. The raw materials are engineering plastics, and the materials are environmentally friendly and pollution-free. The process design is based on ergonomic principles, and it is not tired after sitting for a long time. At the same time, the seat is designed with water outlet holes, no water accumulation, and strong self-cleaning.