This little rubber mat saves your worktop and the portagrinder from scratching each other and if you want to lightly tap the portagrinder to level out the ground beans you can do this with little noise and no damage to worktop or portagrinder. Only negative point I have with this is that because my worktop is slimline, the edge of the mat hangs out below the worktop and if I forget to move it before I open the cutlery drawer I can get stray grindings tipping into the drawer. So not the product really just my work top. I suppose I could modify it slightly if it bothered me that much.