well . . as my title suggest . . they do not last nearly as long as the manufacturer suggest . I have have to replace this pad for my wipe warmer at LEAST every thirty day . and even then , the pad be usually bone dry before then with brown spot all over it the pad -rrb- . which force I to throw away wipe that be near to the pad\/bottom although the wipe have not nearest the dry pad do not simultaneously dry out , who want to use brown wipe for they precious lo 's bottom ? -rrb- the warmer itself do it be job , but these pad need a bit of tweaking ! expect to change the pad every 3-4 week , not as the manufacturer suggest !