Enhance your Too Many Bones experience by adding The Lab Rats! The Rats are our first ever multi-Gearloc...Gearloc! Slank, Gerbil, Flan, and Helix all bring unique stats to the table while utilizing a group pool of 16 Skill dice! Swapping the proper character in and out equipped with the proper equipment for the situation creates a brand new brain-bending approach to existing TMB strategies. The Lab Rats come with 21 beautiful custom dice, nine chips (one for each intern and five 3HP chips), a closable dice holder, and four edge-stitched neoprene character mats. —description from the publisher