Lego Mindstorms NXT 2.0. This has 8 pieces missing - 1 x 4184169, 3 x 4107081 black, 2 x grey 4211815, 1 x blue 4206482 and 1 x dark grey 4211086. It is also missing the software cd. Has a working unit as pictured but battery compartment has signs of corrosion as pictured which may clean up. Good box. Pieces are in excellent condition
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