This is the original “Nintendo paddle”.
Every single controller that comes from this shop is tested and guaranteed working. Most of them have been disassembled and cleaned from the inside (40 years of sweaty Cheeto dust gets real gross) and are working as well as they day the rolled off the assembly line.
Some controllers may have that retro discoloration. You know… that yellow color? Probably also from decades of Cheeto dust.
If you purchase from this listing, yellowing is minimal. I may have some especially ugly controllers listed elsewhere, but the controller(s) you receive will be working brilliantly and looking decent, too.