On the first day slide me one of the boards during drying from his hand and fell to the ground - and held. They should not be put in the dishwasher, since the silicone pads on the bottom otherwise begin to dissolve, at least in our Billigspülpulver. Since wooden boards but sooner or later be unsanitary and can cut man on Frühstücksteller limited, I find this glass boards a good alternative. The rough side of the glass is the way up, but this is no problem for the cleaning.