The purple Biothane Lead is impervious to water and ice, fully functional in any conditions or terrain. If the lead drops into a puddle, lake, or river just grab it and go without slip. Like all Ray Allen Manufacturing leads, these are thoroughly tested by dog handlers and trainers. They require no maintenance and resist picking up stickers, thorns and goatheads. The 1/2" wide material possesses 500 pound tensile strength and the 3/4" wide material possesses 750 pound tensile strength. The length for both is 6'.