ETI-Fiber-lok Non-skid Rug Backing. Used to keep your rugs safely in one place; preventing slipping; skidding and tripping. It is ideal for latch hook rugs; punch needle rugs and wall hangings. Revives old rugs and helps them last years longer. Fiber-lok is machine washable and dryable. It can also prevent unraveling and loosening of fibers and canvas. Fiber-lok is made of matural latex; water and ammonia. Application is as easy as painting it on in thin coats using a simple paint brush: goes on milky adn dries transparent (not clear). Cleans up with soap and water. Packaged in a plastic; wide-mouthed jar. Contains 16 fluid ounces (473ml): 15 square foot of coverage. WARNINGS: Treated rugs may still slip on wet surfaces; Contains ammonia; Keep out of the reach of children; Do not use if you are sensitive to latex. Made in USA. "