what size is the trim that you use to cover the edges of the tunnel and where is best place to get some.....

Have a look in homebase...

got mine from MK, a nice rounded angle which conforms to the necessary radii.

ditch

Search Button Is your Friend....!

I got mine from (Direct Plastics) in sheffield (0114) 2560889 . They call it hockey trim, hope this helps.

thank you all for your responses.got some trim from danny at mk