The metal models are impossible!! I make a lot of models; plastic, wooden, even some card and paper ones. I'd never tried the metal ones so I bought two off Temu last month, a car and a plane. Started on the car and the parts are soooooo small it's impossible to put together. Plus, the metal is super thin, so it bends and distorts really easily. I applaud anyone who can build one, and build it well! The wooden ones are better but of the same, non-glue style, and they do a truck one too. Temu has it. I actually do glue some of the bits, just to make sure it's never going to come apart, but it's not imperative.