Pool Mate 352545RPM Winter Pool Cover, Heavy-Duty Blue, 25 x 45 ft Inground PoolsWinter pool cover to be used with in ground swimming pools Solid material will not let water pass through Pool Size: 25 x 45 Foot Rectangle Cover Size: 30 x 50 Feet (includes overlap in total) Heavy duty polyethylene material All seams are heat sealed for better performance Cover should be able to float loosely on the water, consider going up a pool size if you have steps or a buddy seat Includes loops for water tubes Water tubes sold separately