1,Easily pull and push,even the length reach 100 meters; 2,High ... be pulled and pushed easily,even reaches 100 meters.In this picture, the core is made of steel. ... is made of iron.It is not good enough.In this picture,the core is made of PE. ... better than steel core.This core is the best.In this picture,the steel core,the iron core ... the PE core is put together. marine push pull control cable with PE core