Ideal For Small Cases & Boxes. Easy To Fit. Rubber WheelSafe Running Weight (Per 1): 25kg Wheel Diameter: 40mm Height: 128mm Mounting Base: 72 x 55mm Fixing Holes: 6mm. A strong fixed wheel for securing to cabinets directly. The 40mm wheel is made from rubberised plastic and the strong bearings allow it to carry heavy loads for its compact size. Ideal for making a heavy difficult load easy to move and transport.. flight case caster-flight case wheel