Got this for 5 year old son, who likes to throw things and look at numbers. the board is thick so it is flat after I unroll it and hang it up for a while. The magnets at the tip of the darts are strong so if my son throws the darts in an angle it will wiggle a little bit and stick on the board. He has another set of darts which is suction tip and he couldn't always shot perpendicular to the board and get frustrated when they fall on the floor. It won't happen with this set. The "feather" part of the darts is plastic and sturdy.