The zipper head or body or slider is the part that opens & closes the zipper tape.
5/8" Pull is rectangular with a small hole in the end.
Specifically made for #3 coil zipper tape.
These can be fitted on the tape from either end or from both ends to meet in the middle.
Short auto-locks work well for bags but I prefer short auto-locks for pillows, duvet covers, garments where I want the pull to be more hidden.
Please Note: Heads or Short Pulls are NOT applied to the zipper tape.