Bulldog 9ft Double Surf Ankle Leash | Petrol Blue The new Bulldog 9ft Double Swivel Ankle Leash is light and made from quality materials that ensure its renowned durability. These leashes are well known in the UK for their quality and hard wearing nature. A great leash with a comfy ankle strap, you simply cannot go wrong. Features   Length: 9ftt Thickness: 7mm High strength urethane cord Top quality brass double swivels Detachable two way rail saver Key pocket on ankle strap Precision moulded fittings Velcro ankle strap