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Lost the original bolt when we moved the base to storage, and this replacement fit the small top holes exactly like it should. Took maybe two minutes to swap in and it's held firm through a dozen rocking sessions since. Glad I found a straight swap instead of rigging something.

The holes on top lined up perfectly with the base, so it clicked in without any wobble. Wasn't sure a tiny bolt could make such a difference, but now the rocking motion feels solid again.

Replacement arrived quickly and the fit is spot-on for my rocking base; it slides right into that small hole without any wiggle. Good to have a spare on hand now, since the original can be easy to misplace.