We're trying to identify the middle part in this picture. We would appreciate any help we can get.

part image


It looks like a Round 2 x 2 Dome Top (553b) brick with a Round 1 x 1 (98138) transparent tile.

  • 1
    To be specific, it is likely 553b (open stud with axle holder).
    – Phil B.
    Feb 19 '17 at 0:09
  • I'm not to sure, It looks like it could be 553(a) or 553(b) but not 553(c), They stopped using 553(a) in 2009 so it might not be that depending on how old these pieces are.
    – Ambo100
    Feb 19 '17 at 14:09
  • 1
    I can clearly make out an 'x' shaped axle hole (not a '+' shaped one). Leads me to believe it is 553b.
    – Phil B.
    Feb 20 '17 at 1:40

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