Obviously I am aware of the products mentioned - I sell most of them. I dont deal in the cardboard flips but have a number here from chips I have purchased.

The plastic material used is not the same on all of them - how can I be sure the ones I want to buy are safe?

I have various pages here as well. Some hold the flips snugly, others are loose.

3 ring binders are not available outside the US. The only supplier I found will not ship to the UK.

There are several dealers that sell the flips and one of these has pages also but none have the binders. At the shows Ive seen thick binders holding 20 or more pages - thats what Im after.

I preferably need a supplier for the whole lot in one go.

For example:
4 binders to hold 20 pages each
80 pages
1000 flips