dog pee pads size: 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: each pee pads has five layers to ensure leak-proof performance. The top layer provides a quick-drying cotton surface that lock in moisture, reduces odors and prevents tracking. The reinforcement layer keeps the liquid flowing in the right direction, while the sponge-like core provides maximum absorption and the liquid turns into a gel in contact. The last two layer of leak-proof pet training mats-locking layer and protective plastic lining prevent floor safety damage Fast absorption and leak-proof: The 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 and borders to prevent any leakage