DCW-6WC50 Accessory Bus Wire 50m 7x 0.2mm 6 Core in White SheathAccessory Bus Wire 50m 7x 0. 2mm 6 Core in White Sheath 50 metres of 6 core colour coded 7x 0. 2mm wire in a white sheath. Useful for wiring of low current applications such as Cobalt point motors and DCCconcepts accessory decoders. Also excellent for keeping wiring really tidy, and the white sheath is easy to mark or label with a permanent marker pen. (We recommend the fine tipped Staedler brand CD pens for this).