This looks like a stainless steel line, but it's a small gauge stainless steel wire wrapped in a gray nylon jacket.
This is ideal for a throttle or parachute release cable where a steel cable is housed in a jacket.
The wire core is springy and doesn't droop like a soft line and it isn't rigid like an aluminum line.
This line equals the following equivalent 1:1 size at each scale.
1/25 scale = 1/4"
1/16 scale = 1/16"
1/12 scale = N/A
1/8 scale = N/A
For 1/25 or 1/24 scales, typical uses are smaller fuel lines around the engine, nitrous lines, oil lines and brake lines. Also fuel return lines from the fuel cell or gas tank.
Each package contains one coil of .010 x 18"