Features 1、MAIN PURPOSE: This pad is mainly used to protect the ground swimming pool and prevent damage from rocks, tree roots, or other incisive items to the pool. 2、APPLICABLE SIZE: This pad is suitable for 12ft swimming pools and can be easily trimmed to fit circular, elliptical, or irregular shape swimming pools. 3、FELT FABRIC: The swimming pool mat is made of felt fabric, soft and comfortable, adding cushioning to the pool floor and providing good protection. 4、GOOD PROTECTION: This felt liner pad can protect the swimming pool from cuts and punctures, providing a flat base that ensures safe passage of water. 5、DENSE STRUCTURE: High density and low compression structure ensure that the pool lining provides lasting protection, and can be used for a long time. Specifications Item Type: Swimming Pool Mat Product Material: Felt Size: Approx. 4 meter / 13.1ft Weight: Approx. 1860g / 65.6oz Package List 1 x Swimming Pool Mat