This is 1 kit for 1 caliper containing 4 Brembo 'sintered' pads for goldline, silver, black etc 4 pad calipers. Order 1 and you get 4 pads for 1 caliper.
The Brembo part # for an individual pad is 07.7855.10 whereas the pad kit shown here has been updated to 07BB33SA.