They need two black plastic tubes inserted and bonded in each one, these are being made for me, the one in the pic doesn't have these.

who makes them? who wud i need to contact and do i have to say im a member of sc.net??
all you have to do is tell ad lavyou want 1 give him £70and he will get you 1 in a day or so!
As rash says, gimme some dollar and i'll get you one!
Don't forget postage on top, think its roughly 4 quid anywhere in UK, or free if you collect like rash!!