The larger two tier styles of lab mixers tend to measure about fourteen by five by eight, easily fitting on most countertops under cabinets. The unit itself is very light, just over 5 pounds so it is simple to move from location to location as needed. Smaller units that hold eight test tubes will be about nine inches by five by five with a slightly smaller weight of four pounds. The larger two tier styles of lab mixers tend to measure about fourteen by five by eight, easily fitting on most countertops under cabinets. The mixing machine itself is very light, just over 5 pounds so it is simple to move from location to location as needed. Smaller units that hold eight test tubes will be about nine inches by five by five with a slightly smaller weight of four pounds.