1The sifter cable is made of high carbon steel strands with oxidizing treatment, anti-rust, pliable, durable with no deformation. 2The outer housing is made of quality PVC, resistant to heat and coldness, anti-tear, anti-aging, colorfast and durable. 3The housing cap is made of quality materials, sturdy and fits cables perfectly, can protect the cables from bifurcating. 4Upgraded materials and technology, more lightweight and good quality. 5Perfect accessory for road bike, mountain bike, etc.