This is an aluminum duplex ferrule with slots to attach to 2 cables (or 1 cable looping back into it). It is designed for 1/16″ cable (final diameter, meaning it is also compatible with 3/64″ cable coated to 1/16″). This product can be used in combination with cable to hang signs in retail locations, along with many other possible uses. Sold in bulk quantity of 500 or 1,000.