OOK 53100 Tremor Hanger, 20 lb, Steel, Brass, Gold, Pack of 12OOK Tremor hangers is the most secure way to hang up your artwork. The hook comes with a clip that holds the frame tightly and will not let it go unless the wall falls down first. Great for areas where there are tremors (train stations) or earth quake prone. Also great for households with children. Unit: CD 3 UPC: 049223531007 Model Number: 53100