Complete skeg-kit
The brand new retractable skeg from Kayaksport - complete kit. Operated with a super smooth control unit. and a light dyneema string instead of steel wire. Read more here:
https://kajaksport.fi/products/skeg/skeg-system-4/skeg-system-4-complete/
And see how to install it in a skin-on-frame kayak here:
https://kajakkspesialisten.blogspot.com/2023/02/modern-invetions-for-ancient-kayaks.html