Just found them in a box, there is a fair chance they are not even T2 related, i had a wander round the van and i cant see an obvious place they would go
They are window repair bits, they look like the ones for the back of the rear side windows where the angle is less than 90 degrees.
Oh we'll, I expect one of the clever people will pop in soon and let us know. Unless they are ski jumps for spiders?
Ha haaa - Scott from SJH Joinery had mine tbh the rear window repair sections fit really well when we used them!