Rubber 40mm Case Castors. These Edge Castors are brilliant for fitting onto existing Keyboard, Small Trunk cases, etc. Wheel Size 40mm / Rubber. Our knowledge of Flightcase construction is extensive as we used to manufacture them for 16yrs and we have also been hiring out large sound systems for the past 30yrs so I think we have gained a good bit of knowledge about what works in a sound system as well as what does`nt.
