The A-metal keeps the whole thing strong, but it's still necessary to install the auxiliary fasteners underground so that they are strong when playing on the swings. The slide is low, suitable for 2 year old children, there are 2 swings, one is suitable for my 2 year old daughter, and the other is higher for my 6 year old son. The monkey bar is just right for my son, but it is a little difficult for my 2 year old daughter. They like the seesaw very much. Generally not bad, suitable for children up to 7 years old.