Coiled wire brake housing. Grey to match with everything but to be different from black. Teflon lined on the inside. 5 mm diameter. NOT for index shifters. Yes, for brakes and works for friction shifters and derailleurs, too. 

No cables, no housing ferrules, no cable end tips. Just. Housing.

Jagwire brand housing photographed but brand (Jagwire or Shimano or Yokozuna) may change depending on availability.

Note: the color of grey housing we sell varies depending on brand.

Jagwire - ice grey, a shiny darkish grey

Shimano - grey, a matte darkish grey (matches Yokozuna)

Yokozuna - grey, a matte darkish grey (matches Shimano)

The Jagwire and Shimano/Yokozuna are very similar in dark greyish tone but they are not an exact match. If the particular brand and color matter to you a lot, please go to your LBS and buy housing there instead.