It might be repackaged
It WILL contain aesthetic signs of use/wear/teas/scratches/residue of resin.
It might NOT come with the L-shape Allen wrench
If you have scratched surface on your original build plates, instead of getting replacement ones here, you can also search "Magnetic flexible steel plate + your Elegoo model" as an attached accessory – they will serve as new surface of plates, it is easier to remove prints (just like PEI on FDM printers) and no more leveling between (successful) prints. And most importantly, they are very affordable usually at around $10 - extra saving from replacement