Good distance between bars for chest/triceps dips. This is my boys third pair and he has never worn any out (he just keeps outgrowing them! I swapped this tire for a smooth road tire and the loud noise went away. Note that theres a castle piece located in the 4th row 4th column - there is no requirement that your castle end up in the center of your kingdom. I am not going to the trouble of finding out so will be returning them for a refund. Biggest issue though was pretty plasticky build and they would creak. They were too small when they arrived, but the next size up replacements were perfect The Wearable app works great on my Android (not a Samsung). I originally bought these to use as a temporary solution, but I love them so much, I dont anticipate replacing them ever. I was putting one bike on the top and it kind of got hung up and started to come forward.