These are great, I have a small fur baby. She uses pads regularly. These are perfect for her. They're very thick and I've encountered no leaks or strong urine smell. The charcoal is an ingenious invention. Added to the pad it works well.They're the perfect fit for her small dog size pad holder. Very absorbent and last all day. She has no issues using these. She's been housebroken for years, but she's older and hates to go in the car. So, for puppies on up to senior dogs these are great choice and value.