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Our Design Team identified a need for the Sibling Board, therefore it was only designed from the Xplory® V3 and now the V4. To be more precise, it will fit on Stokke® Xplory® strollers with serial number 113464 and above.
The Stokke® Xplory® Sibling Board can be attached to all Stokke® Xplory® Strollers chassis from serial numbers 113464 on. An upgrade of previous models is not possible.