This a soft rubber/vinyl line that is easily configured to the space you have. It's able to bend at a fairly sharp angle without kinking. 

To attach to objects, use a piece of a straight pin. Stick the pointed end into the soft line and the other end would fit into a drilled hole.
For fittings, see Fittings sized at .080 for this soft line.

This soft line equals the following equivalent 1:1 size at each scale.
1/25 scale = 2"
1/16 scale = 1 1/4"
1/12 scale = 15/16"
1/8 scale  =  5/8"

Depending on your scale, typical uses are larger coolant (radiator) hoses and fuel lines, as well as other larger fuel lines. Can be used for 'puke' lines on a Funny Car or TF rail. The current trend in TF is the use of black lines for fuel, from the pump to the barrel valve and for the injector lines at the 'hat' and the manifold.

This soft rubber line is easy to bend and shape to your installation. 

Each package contains one coil of .078" x 12" rubber tubing