When you need perfectly sliced fresh mushrooms for a recipe or a salad, the cool new Mushroom Slicer from Williams-Sonoma gets the job done quickly. Just rinse a mushroom, place it on a cutting board and push this slicer down over it to instantly slice it. The slices are then held neatly inside the polycarbonate upper container for easy transfer to a saute pan or salad bowl. It also works with other small, semi-firm fruits and vegetables.