Late 2015 iMac in pristine condition with original packaging, Apple keyword and mouse.
A general description of the computer is provided here: https://everymac.com/systems/apple/imac/specs/imac-core-i7-3.3-21-inch-aluminum-retina-4k-late-2015-specs.html. Note that my computer is actually better than one described as it has 16GB of RAM. Computer was used with care and performs as well as when first unboxed.
Specs: 21.5″ iMac, i7 3.3ghz quad core, 16GB RAM, 1TB hard drive
Cost: $400 (original cost US $1699)
Contact: impressionsunflowers [at] gmail [dot] com