Free-line skates are made with strong durable metal that can around 3000 pounds of weight per every piece. The metal plates have been in square form, and therefore are protected with grip tape having a mark of left and right onto it.  It's 72mm wheels.  The freeline skates are made very only for skating.  It's made with strong metal to ensure that people can ride difficult on them. It's also durable and may last for a really lengthy time period.