Made of heavy duty plastic material that resists tearing and provides durability for repeated squeezes during grouting work Cut-to-size tip design allows you to create the exact opening needed for controlled and precise application of grout or mortar Disposable construction eliminates the need for soaking and scrubbing, saving time and reducing clean-up after each project Generous 21 inch long by 11 inch wide size provides ample capacity for holding grout or mortar while remaining easy to handle Cost-effective pack of 50 grout bags ensures you always have a fresh supply available for ongoing or large-scale projects Ideal for tile setters, masons, and DIYers seeking a convenient, mess-free way to apply grout, mortar, or other joint compounds