Long, small, retractable. Leads

[brianthemagical]

I'm after a longer retractable lead for the puppy.

Currently using 5m, but would like something closer to 10m to allow her more room to roam and for us to build confidence in her recall.
She's only 3.5kg, Westie X JRT, so a smaller, lighter lead would be preferable. All the long leads I can find are for large dogs.

Any recommendations and suggestions would be greatly appreciated.

Thanks