I used this for walks with my Golden Retriever. It's a retractable leash made by Ferplast of Italy. The size is Large, with a 4m cord-type leash. The main body is approximately 15.5 x 13 cm. Pressing the top button down stops the cord from retracting. Pressing the top button down and then pushing it further in locks the leash at a fixed length. The size of the handle can be adjusted using the knob on the outside of the handle, so it can be used by people with large hands. Please check the photos for the condition of the product. There are many scratches and scuffs. Please purchase only if you understand that this is a used, home-stored item. If you are concerned about the details or are looking for a perfect product, please refrain from purchasing. Thank you for looking.