... 2.durable & stable 3.easy to assemble & dismantle Drop forged swivel coupler of British style's feature:1.Dimensions:48.3- ... color(Black) , White, Yellow10.Style:British(also can produce German, American, Japanese and so on)11.Quality:good bearing ... no matter for drop forged or pressed.Such as swivel coupler,double coupler,girder (beam) coupler, inner joint pin,sleeve coupler,putlog coupler and so on ...