A potting training device for preventing a potty-training child’s urine stream from passing through the opening formed between the toilet seat and the toilet bowl. The switching element implements switching for a direct-current voltage to convert the voltage into an alternating-current voltage. The transport surface includes a first recess extending in a cross-process direction along a portion of a width of a first sheet of substrate media transport. The devices further include one or more sub-surfaces for connecting one or more of the legs and one or more top surfaces. An article of manufacture is also provided, such as a tire, having at least component comprised of said rubbercarbon black composite or said rubber composition.