This kit has all you need to clean and proof your tents. Grangers Tent + Gear Cleaner is a sponge-on cleaner designed to clean dirt, dust, pollen, and all other performance-impairing impurities from outdoor gear. Over time, and with prolonged use, even the best outdoor gear will begin to lose its ability to repel water. That's because residues and impurities that settle on your gear all absorb water. As your equipment gets dirtier, the more water it absorbs, leaving it much more likely to leak. Grangers Tent + Gear Repel is a spray-on waterproofing treatment suitable for use on all outdoor gear and equipment. By restoring the water-repellent finish to your outdoor gear and equipment, youll be completely protected in even the wettest conditions. This product will also help to protect against stains prolonging the lifetime of all outdoor gear. The expanding sponge is shaped for comfort and ease-of-use. Vacuum packed to cut down on packaging materials, it quickly expands into a full-sized sponge when opened making it perfect for cleaning your gear.