looks like i got the bad kind [SEP] apparently there are two types of these sponges one that is a bit more dense whiter and cuts easily and then there is one that has bigger holes is slightly more yellow and crumbles more easily i got the second kind and i am not as happy as i could be they are dirt cheap so i guess i will still use them but if i need to order more i will try to get the other kind thanks sir wappel