This kit contains the plastic bolts and fasteners from the buttons to the actuator etc for the Sigma 8 and 75 tanks. These are for the mechanical actuator models. Actuators can be found HERE
Flush valves can be found HERE
For instructions on fitting these, see video below from 3.45 onwards:
https://youtu.be/6DM7VTTnk6k?t=224
241.874.00.1