Up for sale is the entrapping Amber Prison, a rare card from the Sixth (6th) Edition of Magic: the Gathering. This is the original, white-bordered, English version.
Amber Prison: Artifact; you may choose not to untap Amber Prison during your untap step; spend 4 mana and tap Amber Prison to tap target Artifact, Creature, or Land; as long as Amber Prison remains tapped, that Permanent doesn't untap during its controller's untap step; casting cost 4.
These cards are all in at least Very Fine condition, with most being in unplayed, Mint/Near Mint condition.