Good weight for a bike jersey, light weight or kidlette jackets.
Easily shortened to the size you need. Purchase #5 Top Stops to shorten this zipper.
A #4.5 is between a #3 (dress weight) & #5 (used in ski jackets).
The tab or pull is small & locking, so that it can blend in to your garment when worn. If you don't like this zipper head/pull combo, go to 4.5 YARDAGE & select a pull. (Change out the pull when you shorten the zipper)
If you are putting this in a baby sweater, I would use this gauge zipper up to an 8 needle with worsted yarn.