The waterproof swimming pool cover can extend the life of the swimming pool and make it more durable. NOTE: (excluding swimming pool) Pool cover Made of high-quality UV-resistant fabric, it is durable. These swimming pool covers fit perfectly over the swimming pool to prevent leaves, dust, and debris from accumulating in the pool. The wear-resistant rope is attached to prevent it from being blown away by the wind. Limit evaporation and reduce the need for chemicals. Please note that due to manual measurement and display differences, there may be slight differences between individual products and the pictures.