Pad Size 21 x 21;Patented Flash-Dry technology instantly turns urine into gel;Won't spread and won't leak;Plastic backing protects your floor;Perfect for training new puppies, elderly or sick dogs, extended indoor stays, or for use while traveling;Unique 7-layer protection against wetness;Made with super-absorbent polymer and cotton fluff;Perfect for newborn puppies, older or ill dogs, extended indoor stays, or traveling;Resists tearing