My company bought me the big slider about a year ago. I work in a busy animal hospital, and the big slider is perfect for moving trash out of our clinic. I also use it to move and distribute heavy supplies to different parts of the building. This device can also double as a ground level stretcher for non ambulatory patients.  This handy tool simply reduces the amount of friction between your work load and the ground and allows you to slide it to any location easily, and without having to employ a dolly. I can highly recommend this product to anyone who needs to move things quickly and safely.