The stairs arrived yesterday and I could not be more excited or satisficed with my purchase. I purchased these for my 12 year old Shih-Poo which is in excellent health but loves to look over the neighborhood and peeking on the neighbors. The quality of this product is outstanding in everyway. The packaging was superior and the note from the seller was awesome quality also and contained a few cards which they gave me to pass on to friends to just say Hello etc. and not an advertisement of their company. I only needed the first 3 stairs as this was my window height and still had plenty of room for Casey to lay down in the sun and relax. The forth pillow is a plus because if I decide to use it for her to get into a bed all I have to do is put the foam step inside and zip shut. Highly recommend this product and the company.