12TC per m.
This section allows you to choose cable by-the-metre. Just enter the total length required into the quantity box and press add to cart. To Add 0.5 metres: Qty only accepts whole metres, so press the 0.5 metre radio button to add an extra 0.5m to the total. The 0.5m is the "One Time Charge" i.e. it just adds the price of 0.5m of cable to the total whole metre price. The cart will show the quantity and total amount. If you also need connectors, see Accessories section.
Example: To get 3.5 metres of cable, enter "3" into the Qty box then tick the "Add half metre button". The extra half metre is added as a "One Time Charge" in your cart.