Cable for 30 feet, slide directly on legs.If you have a long 30-wide tent, especially more than 30 feet (ex: 30×40), you need this to clamp from tee joint to tee joint to stabilize your width to be exactly 30x. This will help decrease the pressure of the Top Tee Joint (C1008) so it will hold during windy conditions.Part: CB30-XShipping Weight: 2.5lbs