A Package, Parcel, A Parcel
Noun
こづつみ
この小包は、ほんの友情の印です。
This package is just a symbol of our friendship.
A small bundle is merely a package. Something big would be a big package, I guess.
The reading comes from 小 (which is a reading you've seen a couple times now, I'm sure) and 包み, with the み pushed inside the package. Beware of the somewhat weird rendaku. You don't see づ too often.