These handy bases for roleplaying game miniatures are made of 100% recycled polystyrene plastic that’s easily painted and glued. Replay Workshop collects plastic that would otherwise go to our local landfill, such as the discarded board game trays that are the primary ingredient in these bases, mixed with CD jewel cases and disposable cutlery. The package contains four sprues with six bases on each, for a total of 24 bases that each measure 1 inch in diameter and 1/8 inch thick. This product is part of the Replay Workshop line from Atlas Games, making quality tabletop game accessories in the USA from recycled plastic.