Involvement:General (knows how to use it) - Ownership:more than 1 month Pros:- the metal case beats almost all the brand name similar magnet toys. it provides good shielding so your magnets won't affect anything else - the balls have good uniformity. Unless you measure them with a caliper they're all identical to the naked eye - the gold shine i... Read more

Involvement:Expert (understands the inner workings) - Ownership:more than 1 month Pros:Its a very interesting toy that takes all your day, if you let. You can make alot of things with these little balls. My friends came to my house just to play with it. Comes with a little case, and its rare. Cons:The color get out in a few days and turns to sil... Read more