The Vevor solar pool cover is designed to help retain heat, reduce evaporation, and keep debris like leaves and dust out of your pool. Made from durable 12 mil PE material, it is suitable for both inground and above-ground pools. The closed bubble design helps insulate the water and can raise pool temperature under favorable conditions. It can also be trimmed for a customized fit to match different pool shapes. This cover is a practical solution for extending the swimming season while lowering maintenance needs.