This product is made of PVC.Please note that due to the nature of the material, there may be color bleeding onto other products or bleeding onto the product.Please be sure to use this product under adult supervision.Please do not use children under age as this product will deepen water.Be sure to check whether there are spikes or pieces of glass/metal/wood/gravel that can damage the area near your poolKeep away from cigarette and fire.Too much inflation may cause damage.The inner circumference will leave a little wrinkles.The air valve is a double layer structure of the valve and the valve is an auxiliary valve that prevents sudden air leakage and does not stop the air completely.Please be sure to insert the plug firmly and use.Use the pool on a stable flat surface.Please avoid using in slanted places, tiles, bricks, and other areas with grout or steps, as this may cause deformation or damage.If used on surfaces such as painting/coating treatment, the paint may change color or color transfer to the pool itself.Please be careful.Item color may vary due to different monitors.Specifications and designs may change without prior notice in order to make improvements.