G811 Easy-Fit A frame for grand pianosThese frames are simple to fit as all you have to do is lift each leg into the appropriate slot on the frame before tightening up the bolts. There is no need remove the castors either, the frame is specifically designed to house them. Each leg of the grand piano slots into a small compartment within the frame which then in turn has 3 double rubber castors fitted. Moving the piano with one of these frames fitted is incredibly easy even for one person.