1. They are made of 5mm anti-slide Acrylic panel, so their thickness is adavancedin Chinese sanitary ware companys.2. Fiberglass insulated around the shell makes the pool more firm and strong.3. Good circulation system allows you to change the water inside the pool for threemonth once.4. Nice anti-rot imported wood and plastic combinated skirts are with two colors(grey/brown) for your choice.5. The swimming and spa pool is a good combination between enjoying massage and trainingswimming. It is the deepest Acrylic swimming pool in China. producing area:Guangzhou, China payment:T/T