Emtek Roller Door Catch

Ball Catch is often paired with large pivot entry doors or doors that include dummy knobs. A ball or roller catch will hold a door in place without having to initiate a deadbolt or latch. It is usually installed on top of an interior door and are especially common for interior French doors or double dummy closet doors.

References

1. Technical Specification
2. Installation Guide
3. California Residents Proposition 65 Warning