Metallic braided cable is more compression resistant and tougher than plastic-coated cable. It also looks great. The cable housing has a thin clear plastic sheath to protect you bike's paint.
5mm diameter housing.

One bike's worth, includes:

2 x 700mm lengths lined SIS-compatible 5mm diameter housing
1 x 300mm length lined SIS-compatible 5mm diameter housing
1 x 2100mm length stretched stainless steel slick pre-stretched cable
1 x 1500mm length stretched stainless steel slick pre-stretched cable
6 x ferrules
2 x tips