Braided Poly Control Dog Leads Our Poly Animal Control Leads are slip-style leads with an O-ring slide for easy size adjustment. Our Poly Animal Control Leads offer quick control in kennels or veterinary clinics. Each slip-style 5' lead with "O" ring slide adjusts easily to any neck size Made of strong, braided polyethylene in assorted colors Material: Braided polyethylene Size: 5 feet in length Bulk packs available in; 6, 12, 24, 36, 48, 60, 72, 96, or 120 leads