Very Rare K tec Commercial Blendtec Thumper TPR-501 Pitcher Shaker Prototype ?

Offers on auction items must be higher than the opening bid for me to consider. Thank you. I cannot find any information on this whatsoever. Doing research online it's like it never existed. When you lift up on the part where I'm assuming the pitcher sits it shakes/vibrates. It does work as intended. When you let the stand down it flips a switch and shuts off automatically. Has scuffs and scratches but no structural damage. all offers considered I offer Free Returns. However, If am item is returned in a different condition than when I shipped it, only a partial refund will be issued. If a different Item is sent back, NO refund will be given and ebay will be contacted immediatley.

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