Hello fellow windsurfing junkies,
Stuff the sharks, i'm dieing to get out there. I've just got one problem, i lost my bloody fin for my Tryonsea learning board. I have another board, which is a 125ltr slalom board which I also lost the fin for a while ago

Anyway, like I said i've only been doing this for 4 or so months. Any chance you chaps could give me some advice on what sort of fin I should get for my slalom board?
It's 286cm long. I weigh about 60kg and I use a 5.6m sail. On my board, there are 2 screw holes for either end of the fin base. Does this type of base have a particular name?
I'd like to get another fin for my Tyronsea board but i'm doubtful they would be around anymore.
any help would be appreciated.