On Twitter, The Gifted producer Derek Hoffman shared picture of the manacles worn by Sentinel Services' Hounds and revealed that the design was inspired by artists Jim Lee and Barry Windsor-Smith.

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Both Lee and Windsor-Smith have drawn for the X-Men in the past. Lee's tenure began as a backup story artist for Classic X-Men in 1989 and stretched into the early 90s X-books. Windsor, on the other hand, has an X-Men career that stretches even back further, beginning in 1969 and concluding in 1987.

On Fox's The Gifted, mutants under the employ under Sentinel Services are referred to as Hounds. Whenever these Hounds are out in the field, they wear high tech manacles that combine the powers of the mutants wearing them. These manacles worked into this week's episode, where Sentinel Services brought in twin mutants -- one who can manipulate inertia and the other to influence gravity -- to attack the Struckers' hideout. The device very clearly works, making it all the more imperative the Strucker twins or Frost triplets don't get captured.

Airing Monday nights at 9 pm ET/PT on Fox, The Gifted stars Stephen Moyer, Amy Acer, Sean Teale, Natalie Alyn Lind, Percy Hynes Whites, Blair Redford, Jamie Chung, Emma Dumont, and Coby Bell.