This sliding gag twisted dog bone bit is part of the Feather Collection by Metalab. The bit features a 7" gag shank, 5 1/8" mouthpiece and sweet iron. It is made of black steel and overlayed with an intricate feather design with turquoise and copper accents. 

Sweet iron

Feather 

Cheek" 7"

Mouth piece: 5 1/8"