lets of grips do not have ends, but you can make super clean cuts on closed grips so that they may as well have been open.
1. remove bar plug.
2. stick grip on (water).
3. tap the end of the grip with a small hammer co that the bar cuts a neat little hole.
4. remove grip, dry it and then slide it up the bars with high 91% isoporyl(rubbing alcohol), enjoy the ether.
5. set in place and let dry.
6. reinsert bar plugs.