These super silky doughs will last for 12+ months if you put them away after play and won't dry out even if they are left out overnight. Just squish them around so that they can rehydrate themselves! They are even microwave sanitizable. The beautifully smooth texture is not crumbly or gritty and will actually help encourage hands-on tactile play. They are made with all high quality non-toxic, food-grade ingredients and are nut-free and vegan. With ingredients of just flour, salt, canola oil, cream of tartar, food coloring, and potassium sorbate, parents can be at ease knowing that these doughs are totally taste safe.