Our classic rolled leather dog slip lead, now in colour, handmade in England.
The thickness (gauge) is 10mm, constructed with a 6mm pre-stretched polyester cord around which we wrap, glue and stitch the soft leather. The internal rope is made for sheet and halyard use by yachtsmen - which means it won't rot if it gets wet, and has excellent strength and durability and a tensile strength into the thousands of pounds.
The length of the lead on an average size Labrador, for example, is about 80 - 90 cm from the nape of the neck to the start of the handle (overall length of the lead is taken up by the neck size. So, on a Springer Spaniel, the length to the handle will be longer than if the lead is used, for example, on a dog with a thicker collar/neck).
Please note: This is a high quality, natural leather product. To ensure its durability, allow to air-dry completely before re-use if your lead gets wet. Do not allow the leather to come into contact with the chemicals from commercially-available flea spot-on treatments. This will damage the leather and may cause the dye to run.