188 mm TUBES aluminum toe links for X-Maxx WideMaxx kits are lighter than steel and stronger than titanium. The secret lies in their unique hollow tube design which maximizes rigidity while reducing weight. Made from high-grade 7075-T6 aluminum, TUBES feature a brilliant anodized finish for extra style. A handy machined groove identifies the left-hand threads and the included aluminum wrench helps prevent marring while adjusting the turnbuckles.