Aluminium Pool Roller & 8X4.2M Pool Cover Made of sturdy aluminium construction with full adjustability, this pool roller is suitable for pool with a width between 2.1- 6m. Equipped with premium anodized aluminium alloy stands with plastic wheels for maximum portability and convenience. With an exclusive non-slip spinning wheel design to roll up pool covers for easy operation. This pool roller will help to keep the pool clean at all times with little effort. Made of premium low density polyethylene 400 Micron, this solar pool cover is extremely durable and can efficiently and effectively distributing the heat to the water. It allows sun heat to penetrate to the pool; increasing the temperature in the water as well as can significantly reducing water evaporation. Also, it helps in keeping the pool clean; reducing maintenance time and cost for filtration and pumping. Maintaining your swimming pool will no longer be expensive. Get the best of natural resources and save money on chemicals and water!