Size options - S: 18x13 inches (length x width), Suitable for small pets. Includes 100 tablets per pack - M: 24x18 inches (length x width), for small puppies to small and medium dogs. Includes 50 tablets per pack - L: 24x24 inches (length x width), this medium-sized dog pee pads are suitable for small puppies to medium-sized dogs. Includes 40 tablets per pack - XL: 35x24 inches (length x width), this large dog pee pads is suitable for small dogs to oversized dogs. Includes 20 tablets per pack Pee pad anti-leakage design - Five-layer design for leak-proof performance - Top layer provides a quick-drying cotton surface that lock in moisture, reduces odors and prevents tracking - Reinforcement layer keeps the liquid flowing in the right direction - Sponge-like core provides maximum absorption and the liquid turns into a gel in contact - Last two layers are a locking layer and a protective plastic lining to prevent floor safety damage Fast absorption and leak-proof - High-absorbent core can lock the moisture, instantly absorb and turn the liquid into a gel - Each training mat can hold 3 cups of water - This product also has plastic borders to prevent any leakage Skills training - Help your puppy get familiar with the dog pee pad by placing him on the pads several times - When the puppy succeeds in the pad, immediately verbally praise and reward with a treat, and then replace it with a new dog pad - If your puppy eliminates elsewhere, gently put him back on the mat as an encouragement - Always use positive reinforcement for best results, and limit your puppy to a smaller space, such as a kitchen or bathroom