I just read all the info given by Leahs (thank you so much), i've saved the instructions and i'm really glad i did read them all as I nearly ordered the Wilton hidden pillars until I noticed Leahs said they are not the same.
I've had a quick look on the net and can't find the sps in the UK, I have e mailed Bakery Crafts (I hope they are the right people) and asked where I can buy them here.
I don't need them until April, I was going to use wooden dowels for my friends 3 tier wedding cake... now i'm worrying about transporting it after the horror stories on here
I would like to get them early so I can have a practise before the big day.
Thanks again Leahs for all your help