"Corner-Over-Corner" drum tumbling mixes contents, saves time and labor, so Morse introduced the DrumTumblr. "Corner-Over-Corner" tumbling of drums corrects settling and homogenizes contents. Prevent hazards and worker exposures by not having to open drums for mixing. Plus, drums are easily and securely loaded and unloaded into DrumTumblr with your hoist or crane. This is the new method to mix contents inside steel, plastic and fiber drums (30 to 55 gallon sizes).