Made of pure stainless steel 304 includes: - pressure gauge (0-16 bar) + 1/8 adapter - piston with silicone seals - piston rod - lever for coffee group - PTFE tape and food-grade grease - fixing key - piston insertion tool - 4 nylon shims: they help the fork to avoid touching the head of the unit when pulling. They are to be installed between the fork and the group head body, on the two front screws) suitable for Pavoni PRE and POST Millenium Europiccola / Professional