QT, Sandstone, Pre-Mixed Grout, Is The No Mix, No Mess Alternative To Traditional Grout, This Shrink & Crack Resistant Formula Is Also Highly Resistant To Most Common Household Stains, Ideal For Grout Restoration, Protected By Moldgard Technology To Resist Mold & Mildew Growth, Sanded & Can Fit A 1/16" To 1/2" Grout Joint.