Each mini-magnet is 1″ in diameter. You will receive 30 different Superhero/Antihero magnets (all are different, you will receive no duplicates). Set includes 2 different pins of each of the following: Superman (one is a Supergirl), Spider-Man, The Flash, Captain America, Batman (one is a Batgirl), Iron Man, The Hulk, Wonder Woman (one is a Wonder Girl), Wolverine, Green Lantern, Deadpool, Punisher, Spawn, V, & Venom.