I was a bit leary on this purchase , but I've been using this product for a week now and its holding up better than the belt the manufacturer sent ! Recomended , for this price , what you got to lose ? If the ad states in the technical details "three packs of 5 asst. grit belts " make sure you contact seller . It is only 1 set of 5 belts . Cummons resolved this issue with me , with no problems and very professionally , so If there is a problem , I'm sure you will have no problems resolving them !