lyoowng 3 Prong to 2 Prong Adapter, Non Polarized 3 Pin to 2 Pin Power for Wall Outlets Plugs, Grounding Converter Adapter, Gray (Same Prongs) NonPolarized is up for auction in Tools & Home Improvement. The current bid is $3.00, 70% below the $9.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.