1.[Round pool covers] Dimensions: The diameter of the pool cover is intended for a diameter of 210 cm, a round pool 180 cm, an overhang of 30 cm and a clip for a secure hold (Note: Please measure your pool size beforePurchase / pool not included)2.[Save water bill and solar heating coating]Use the power of the sun to heat the water so you can swim by heating the water sooner or keeping the water warm after swimming.It helps prevent up to 90% of pool water evaporation when the pool is not in use3.Waterproof Pool Cover: The pool cover is made of high quality waterproof polyethylene, strong and durable, waterproof and tearresistant4.[Dustproof]These pool covers fit snugly over the top of the pool to keep leaves, dust and debris from collecting in the pool5.[Windproof]Easy installation, wearresistant rope is attached to prevent it from being blown away by the wind