Specialised recall lead in quality material with leather handle and interwoven leather foot stops. This is the classic way to teach recall, it is far better if you use a whistle in conjunction with this technique. This should be an acme whistle (see my products). It carries further and stronger than the human voice. More importantly it is far more commanding, and does not sound emotional and panicky. which the human voice can impart. Approx 25ft long made from ultra strong thick canvas and leather. Instructions on recall and techniques included.