grade material: This leaf net cover is designed for inground rectangular pools. It uses a finer mesh to block small leaves more effectively. Made of quality polyethylene, it is sturdy, tightly woven, and resistant to tearing. Durable and deformationresistant: The cover maintains its shape with prolonged use. For improved leaf containment without ripping, it features a finer mesh, tighter sixneedle hemming, and larger seams. Easy installation: Simply lay the net over the pool surface. Thread the rope through the small holes in the net and tie it to the pool railing, or place hydration bags on the cover to hold it in place. Universal compatibility: Suitable for domestic or professional use and works with both aboveground and inground rectangular pools. Use scenarios: Autumn/winter debris control: Keeps leaves and debris out of the pool, reducing cleaning time. Offseason protection: Facilitates seasonal storage and prepares the pool for spring opening. Professional use: Quick, easy deployment and removal for pool service providers managing multiple rectangular pools.