MediumWeight Trolley Exerciser, 75 - Red Four Paws Trolley Exercisers are available in three break strengths and two colors: red and silver. They are available in lengths of 50 75"and 100". All Super Trolleys are available in 25 and 50 feet lengths." From the home of quality pet products Medium Weight Trolley Exerciser, 75' - Red Four Paws Trolley Exercisers are vinyl coated to prevent rust Available in lengths ranging from 50 to 100-feet and various break strengths This Trolley exerciser comes with a 10-feet lead