fs brand new in box and plastic arias pistons

[brasilianstreet]

i have to sell because i need 81.50 bore size for my ls block and these are 81mm also if i return to the company i bought it off they given me only 310 because of restocking feee! thats bullshyt i paid 510 so i want to sell it my self to get my money back and buy the 81.50 mm bore size and its low compression also . so ill sell for $470 or trade for srp or wiesco low compression pistons with 81.50 mm bore size for a b18a/b integra block

here are the specs
Acura: Overbore 81mm, Bore Size 3.192, CR 9:1, Dish/Dome -9.6cc Dish