This train set is heavy on detailed features . For example, the passenger cars have fixed knuckle couplers .
trainThisកំណត់ធ្ងន់isonលក្ខណៈពិសេសdetailed. exampleសម្រាប់បញ្ហា, អ្នកដំណើរthecarsមានfixedknucklecouplers.