This underground pool cover measures 18 x 36 feet and is suitable for swimming pools of 16 x 34 feet. The underground pool cover is 2 feet larger than your swimming pool and can achieve a tight coverage without stretching. Please measure the size of your swimming pool before purchasing. Multi-functional, suitable for all kinds of underground swimming pools, it is an ideal choice for home, garden or hotel swimming pools. Made of high-strength polypropylene weaving, it has passed the UV1000 anti-aging certification (can withstand 1000 hours of sunlight without becoming brittle), and is equipped with double-band reinforcement (breaking strength ≥800N) and triple edge-locking stitching. It remains flexible in a temperature difference of -30℃ to 60℃, and still maintains 90% protection performance after 3 years of outdoor use. This kit includes brass anchor bolts, stainless steel springs and all necessary installation tools. Compatible with hard pool banks such as concrete and stone, adjustable rope length, suitable for 90% of underground swimming pool structures. The three-step installation method of "measurement - drilling - tensioning" can be completed by a single person. Color: Green.