Originally developed by Expanded Technologies as an easy way to keep doors open while rooms were cleaned, the Gripper Doorstop has recently emerged as a critical tool to prevent intruders from entering rooms during a lockdown. It’s a bright yellow doorstop with a hook for easy storage, covered on the bottom with a non-slip material that grips any surface while protecting the floor from scratches. The patent-pending design ensures that even with heavy use, its performance will not slip. Because of its design, the Gripper Doorstop can accommodate almost any size and type of door.