Q: Why your team designed this kind of small dog ramp? A: We have our pets also, and we love them very much. Some small dogs can't get on staircase with their own. Sometimes, it may be inconvenient for us to help them, and in order to solve problems like we went out or busy, we figured out this small pet stairs for getting on stairs. Suitable for all sized of pets: Our pet stairs can be suitable for puppies, short-legged dogs(such as dachshund, corgi, pug, bulldog), small dogs, medium sized dogs, some large sized dogs, injured cats and so on. INRLKIT pet stairs are an comfortable way to help pets reach their favorite high places. After using foam pet stairs: Most pets got less back and joint problems after using foam pet stairs when they do less jumping up/down Comfortable angle design The 25 degree design will make your injured/old pets easier to climb on. Anti-slip carpet fabric We use thick carpet material as the cover to anti-slip and anti-scratch. Product dimension: Our pet stairs is suitable for weight under 154 lbs ; suggest staircase height from less than 7 inches; Also, please make sure you are aware of one thing. If your pet is a medium or large dog, due to the ramp's width of 13 Inches, we recommend that you increase the width by installing 2 ramps in one step and right next to each other to ensure the safety of your large pet. Kindly remind: 1. Please allow 1 cm error due to manual measurements. Package include: 4 x Wooden Pet Stairs