Ruger 10/22 25rnd Tactical Innovations magazines

[Doz]

I have two barely used Tactical Innovations TI25 25-rnd magazines to fit Ruger 10/22. They're the adjustable ones, black polymer with steel top as sold by Brownells here. Full manufacturer's guff here.
I only used them around four times so they're not even properly adjusted for my rifle, they're almost new condition but I no longer have the original packaging (it was only a plastic bag!). They should also come with a 3/32" allen key for adjusting them but I'm not sure what I've done with them - given a day or two I should be able to dig one out.
£25 each plus post (probably about four quid signed-for which would cover one or both mags).