Small Rat Maze - (Clear walls) Build a different maze everytime ! for Rats, Hamsters, Mice and Other Small Critters Mixed Color Orange and Green Rat Maze - 76 pieces Modular rat maze design lets you add more kits for larger designs one kit is a Small for Rats and a Medium for Mice and dwarf hamsters Critter mazes Packs away neat and tidy for easy storage Build a VERTICAL rat maze as well as horizontal Great for school rat maze psychology studies and science fairprojects 12 bases that clean up easy with warm water and soap - reuse the same parts over and over