Kokido Kalu Aluminum Swimming Pool Cover Reel (Up to 18.7 ft) | K936WBX Strong but lightweight aluminum frame that is resistant to corrosion Large crank wheel for easy handling Includes 5-section 80mm diameter tube set, all in one compact box for shipping and display Tubes available in 2 different lengths of grooveless or grooved tube type Heavy Duty wheels with large tread tires ensure easy maneuvering