* Add 1 Part 553c Dark Bluish Gray Brick, Round 2 x 2 Dome Top - Hollow Stud with Bottom Axle Holder x Shape + Orientation (Alternate) (match ID 2)
* Change 1 Part Dark Bluish Gray 553b Brick, Round 2 x 2 Dome Top - Blocked Open Stud with Bottom Axle Holder x Shape + Orientation {match ID 0 to 2}
Comments from Submitter:
Found both variants in sealed sets, thanks