Trio is probably the most bidder-friendly Bidding Box. At the World Championship Zia Mahmood exclaimed: "This is the best box around, it makes the bidding easy!"
Trio is also very easy to handle between sessions as it can be opened/closed without re-arranging the bidding cards. It can also be fitted to the side of the table using adapter sets.
Choose between red, green or blue with English, French or German bidding cards.