Object styles don't contain dimansions, so that isn't a solution in any case.
It should work if you change one object, then select the rest and use Object > Transform Again > Transform Sequence Again Individually.
An object style won’t help. Size is not a part of the style.
Change one and then select the rest and choose object>transform again>transform again individually.
I hear an echo..
Notice the difference in what Bob and I said. If you need to cange only one dimension, Bob's answer will work but to change both you need to transform the sequence.
Correct you are, sir. It worked. Thank you!
I have one more question if I may...
The boxes I need to resize all seem to have a 98.72105...% X Scale Percentage. I can't seem to change them to 100% Scale. When I try to change the percentage to 100%, the physical size of the box changes but the percentage stays at 98.72105...%. I also just noticed that the Y dimension changes, too, but the percentage stays at 100%. Any suggestions?
Thank you both. Never mind about my second question. Someone must have resized the boxes using scale. I reset the scale to 100% and they're fine now.
In your preferences, under the General tab, under Object Settings, I'm guessing you have set When Scaling Adjust Scaling Percentage. When Apply to Content is selected, the frame always shows as 100% when you select it and only the content shows scaling values. Apply to content also allows uneven scaling of strokes (and bogus values listed for stroke weights and text sizes). You can select the objects and from the flyout menu on the control panel choose Redefine Scaling as 100%