(MF4/1)
If you are trying to raise something that has castor wheels, and you think that your client might be put at risk because of it. Then you might want to consider immobilizing the caster wheel with a caster cup. A castor cup is flat on the bottom so that it sits flush on the floor and cup shaped on the top. The castor wheel sits in the cup and is unable to turn, therefore immobilizing the wheel. Sizes are small, medium and large. See SELECT OPTIONS for sizes. DOUBLE CLICK PICTURE FOR MORE DETAIL.