The Jensen Rotationally Molded Flat Swing Seat is a very durable and well-constructed seat that has a tensile strength of 3000 lbs. The dimensions on this seat are 8" x 20" x 2" thick which makes this swing a comfortable and safe addition to your environment. Please note that all swings should be professionally installed. Additionally, adult supervision is required. Swing seat inspection is a must, and it is necessary to check any swing for damage and/or vandalism. Please read all instructions before installation and use.