Grout Sponges are made with the professional tile & marble installers in mind. Our grout sponges bulk have been on the market for over 20 years and the professional tile men says it's best grout sponge on the market. Great value. Monthly sales exceeds 20,000 sponges. We sell tile grout sponges Sizes (large) or (x large). Package (box) or (bale).