The “Science Lab” themed modular unit is a fun solution to add an attached observation area to your existing hamster cage or to use this as an exploration “turnpike” to where you can connect multiple tunnels as you expand your hamster’s habitat. Each “Science Lab” features three access ports a “lab desk” and multiple ventilation points. The lab measures 8.9 length x 8.1 width x 5.6 height inches and clear plastic allows easy viewing into the habitat. Please note that the “Science Lab” itself is not a suitable hamster cage this is only an add-on unit. The hamster “Science Lab” comes with a 1-year manufacturer s warranty on all parts.