Super easy to put together even though there is no instructions. Both sides slide onto the base. The back slides onto the base. Cords are color coded to plug together. There is only two little brackets that bolt on the back base for anti-tip over help with 4 wing nuts so it’s very easy to assemble. Chair is very comfortable. Heat and massage functions are very nice. Chair lifts up almost straight up in the air that would help almost anyone get out of it. Definitely highly recommend this chair.