The box is terribly helpful! Often used in fronts, finishes and teaching a drop without forward movement. You have to continue using it and gain muscle memory and understanding of what you are asking for (many dogs are not even aware they are creeping) before there are long-term fixes though. You can also use PVC piping with couplers or small cement blocks if your dog pushes the PVC (for example if you work on carpet, tile, hardwood, etc.).