Pool Mate 50-ft x 30-ft Green Polyethylene Winter Rectangle Pool Cover

50-ft x 30-ft Green Polyethylene Winter Rectangle Pool Cover. Pool Size: 30 x 50 Foot Rectangle - Cover Size: 35 x 55 Feet (includes overlap in total). Winter pool cover to be used with in-ground swimming pools - Solid material will not let water pass through. Extra heavy-duty polyethylene material - All seams are heat sealed for better performance