You are looking at brake caliper rebuild kits for 2004-2006 Dodge Ram SRT10 trucks. These kits include pistons, seals, copper washers, banjo bolt and new bleeders with new caps. Be sure to select the proper parts for your year and caliper location. This is the most complete brake caliper rebuild kit available.
Each kit covers 1 caliper. If rebuilding both calipers you will need 2 kits.
Video on how to identify your calipers: https://youtu.be/zlQ5Rm58F0U?si=J5SAMPpaIGH8Zjrx