This is a nice thick (1/2 in) felt rug pad.  Got this to go under a rug we ordered from Wayfair as well.  I read reviews and ended up ordering a size smaller than the rug I bought.  This way avoided having to “trim” the pad. The rug is a 10x10. This pad is a 9x9”.  Worked out very nicely!  This allowed the rug to rest on the floor at the boarders decreasing tripping hazard.  Glad I ordered thick pad as it makes the rug very cushy! Pad came quickly ~within a week.