KayteeCritter Trail Funnel Connectable Colour Tubes, 10 Pieces, Fits all Critter Trail Habitats

Are there any extra pieces I need to buy with this in order to add it to the Habitral Cristal cage?

I didnt read all of the description, but how many are inclided in the pack? Also what types, like straight, or are all curved?

What colors are included?

Will these tube fit tiny tails cages?