Size: Suitable for a round swimming pool with a diameter of 183 cm. Material: Swimming pool cover made of high-quality, environmentally friendly, non-toxic PE (polyethylene) material. The waterproof swimming pool cover can extend the life of the swimming pool and make the swimming pool more durable. Function: The swimming pool cover fits snugly over the top of the swimming pool to prevent leaves, dust, and debris from accumulating in the pool. The wear-resistant rope is fixed to prevent it from being blown away by the wind. Reduce water waste: Limit evaporation and reduce the need for chemicals. Easy to install: Lightweight, foldable, soft to the touch and does not hurt your hands, easy to move to any place you want, such as gardens, camping, balconies, easy to install, suitable for round swimming pools.