2m long and 1.5cm or 1cm wide, with 3 D rings and 2 clips for multiple handling combinations. Wrap it around you and clip on for a hands free… un clip it and keep it long for more freedom on walks. Clip one side to a collar and the other to a harness for better control. Suitable for the life of your dog. 
Check for general wear and tear before use over time, use dog leads appropriately and sensibly.