For interior doors where a simple latch is all that required. Plain knob on both sides. Turning either knob will retract latch bolt at all times to open door. Dual option latch includes: 1/4 PackageTypeDescription Latch 2-3/8" or 2-3/4" ---- 1. This product is shipped from overseas. 2. Product **and other products made in Japan are not applicable. 3. Packaging and instructions are in English.