The name is misleading, the tiles do not actually lock in the board and the entire set is made of cheap plastic, with the bonus spaces on the board simply being stickers. We got this thinking the tiles locked so our cats wouldn't spill it, but they're still able to. We regret not purchasing the platinum scrabble board instead which looked much nicer and simply had inset spaces. If you want a travel set, just get the travel set, and if you want something non-spill that you'll be spending a lot of time playing, just get the platinum board instead.