Absolutely do not buy unless you want it for display or mods. The quality is awful. The pieces aren’t capped off so every turn catches and really, you can only lube the core because if you lube each layer it’ll just run inside the pieces themselves because they’re not capped off. It feels like a $1 puzzle you’d get from the dollar store. I hate having display puzzles (ones I can’t mess with), so this was a bad purchase for me. I may fill the pieces with milliput. I don’t know.