not a pro just a mommy who luvz 2 travel... its best for u n ur dog to know how to go on pads n outside even on gravel or concrete.. y? because u never know where u will be n ur dog needs 2 be able to relieve its self where ever u r. n pads are great because u can take them every where u go so if ur ever in an area that ur dog isnt familliar wth he will go on the pad. hope this helps |