They are the following
25x70mm Narrow Bike Bases set of 5 for $10.00
40x75mm Wide Bike Bases Set of 3 for $12.00
Attack Bike Base Set of 1 for $7.00
120 x 95mm Oval Base 1 for $10.00 These are perfect for flight bases ;)
120mm Large Round base
Some have recessed areas to allow for liquid effects like the others in the series.
Mathieu has a few more things yet to sculpt to complete this series.. So soon their will be more good stuff!
There you go!