You get one pair of Zubits® closures for one pair of shoes. Use them forever! You also get 4 Zubits Z-lace™ shoelace securing clips to make securing and adjusting your laces easy.
Size #3 is recommended for large people over 190lbs (86kg), or anyone who wants to use Zubits for recreational sports. Size #3 has the most secure hold for active use. The difference with Size #2 is the advantage that it is a little easier to pop off when you want to remove your foot. Size #3 is also recommended for boots or heavier shoes with stiffer soles and people who like to tie laces really tight.