The NSC-G Series sliding door closer is an innovative solution to add a self-closing feature to glass sliding doors. Utilizing a durable pull spring device, the NSC-G Series offers all-section, self-closing functionality. The door closes automatically to a completely closed position, from any position hands are released from the door. The rotary gear damper provides smooth soft-close motion before the door hits the jamb. This is a non-electric mechanical system (no hot work/power supply required) and is easy to install.