The enormous tearing and breakaway forces allow you to experience the model building experience extremely realistically. The precise CNC-manufactured metal components are manufactured to fit precisely and, together with the first-class, true-to-original color intensity, form the overall appearance of a Volvo excavator. The metal-made slewing ring allows the excavator and its solid material excavator arm to rotate endlessly through 360°. The coordination of the force ratios in conjunction with the pre-assembled hydraulics round off this power package and result in a promising model building experience. You can return old batteries that we carry or have carried in our range as new batteries free of charge to our shipping warehouse (shipping address). The symbols shown on the batteries have.