RANNARI Running Lines A set of thin floating running lines to cover all your needs. All Rannari running lines have control markings at 5 m intervals. These running lines don't have any memory whatsoever so there's no need to stretch them before use. Built on our low stretch core. We have a small loop at the back and big loop at the front for smooth and easy attachment to your backing and shooting head. The big loop at the front helps threading spools through for changing fast between heads. Phthalate free. .033'' / 20lb for single handed and switch rods .036'' / 30lb for double handed rods .043'' / 50lb for heavy duty fishing where high breaking strength is a must.