The One Year Doodle Scrub Maintenance Kit includes: 4 isolators, 4 washers, 4 isolator top screws, 8 isolator bottom screws, 3 grip faces, & thread lock. It's recommended to replace the grip face every 4 months. At the end of the year, during the 3rd service, the isolators and grip face should be replaced.
Instructions on how to replace the grip face and isolators will be included.