Review on JOYIN Translucent Educational Construction Building Set for Learning & Education by Daniel Reeder

To be honest this product wasn't that bad judging by the reviews. Definitely cheap plastic. but at a great price WHAT YOU EXPECTED. Mileage set with diamonds. But I digress. My problem is with its size. I was told that all of their products would be interconnected. I know I'm not a rocket scientist BUT I know when things don't add up because of their size. normal marble. as well as in other runs. too big for that. I don't even know where to find balls that small. So if you're going to buy this, you either know where to get the little balls or skip the whole thing. Ps also missing parts.