Rogz Utility Classic Adjustable Reflective Lead DayGlo. Recommended for everyday use, Rogz Utility Classic DayGlo Leads are very durable with highly reflective stitching which provide enhanced visibility and safety. A waste bag and accessory holder are there for your convenience.. 4 Sizes Available.. Lead Size. Width. Length. Small. 11mm. 1.8m. Medium. 16mm. 1.4m. Large. 20mm. 1.4m. Ex Large. 25mmÂ. 1.2m