The kit contains all the seals you need when the seals on your group start leaking. The seals included in the kit are as shown, i.e. 2 black piston seals (seal recess on top seal to the top, seal recess on bottom seal to the bottom), 1 black shaft seal (the brass washer with the 4 holes and the stainless steel cir clip are no longer included in the kit – not our decision), 1 red portafilter seal, 1 white group to boiler seal.