sell Apple MagSafe Power adapter - 85 Watt( brand new) for 55 dollars

i lost my computer and had almost brand new mac pro book power adapter to sell .

original price is 79 dollars in apploe store .. since i lost the package so it is not possible to return it .

here i am selling it for 55 dollars and it is almost brand new and the plastic seal is still on the adapter and is not open yet .

please let me know