LEGO part 59510c01 - Light Bluish Gray Electric 9V Battery Box 4 x 11 x 7 PF Complete Assembly with Orange Switch and Dark Bluish Gray Covers at BrickScout
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Electric 9V Battery Box 4 x 11 x 7 PF with Orange Switch and Dark Bluish Gray Covers : Part 59510c01 | BrickLink
LEGO Inventory for 9628-1 Power Add-On Set | Brickset