The sturdy Super Plus Board is easy to pile because it is interlocking in the right position only. (The boards will not fit together if turned 180 degrees.) You can easily verify that a set is in order thanks to a sticker on the short end.
There is a separate compartment for the traveller on the back; safe and convenient.
The Super Plus board is available in yellow, light blue, pink, light green, almond, dark blue, orange, dark green and red. Stickers are included.