The seat and back are made of Textilene, which has the advantages of high tensile strength, water resistance, oxidation resistance, wear resistance, long service life and so on. The firm metal frames is designed with mechanical structure to improve overall stability, the surface of the frame was coated with anti-rust paint. Maximum weight load of 330 lbs. This family patio furniture set with 1 loveseat, 2 chairs and 1 glass table is perfect for lawn, garden, yard and balcony and suitable for eating dinner or enjoying your leisure time. We provide professional instructions to make your installation more logical. If there is any wobble during installation, it is basically caused by screws are not tightened or gaskets are not be placed. Free replacement or refund for who not satisfy with any quality problems within 30-days, Free replacement for damaged/defective parts within 6-months. If there is any part missing or damaged when you receive, please feel free to contact us, we will response swiftly and do our best to meet your demand.