Dixon bate which length

Hi all,

I have found an image of an ideal setup for my tow hitch... I would like to keep my standard tow bar and ball and fit this type of dixon bate adjustable slider above it

Does anyone know what lengthj it is? I think it may be a 150mm or 200mm.

Cheers

The holes on a normal Dixon Bate Adjustable (Ladder) are 2" apart and the top and bottom bars are on the same spacing. 5 holes each side and is 13.5" overall height.
If that one is the same spacing and has 3 holes then it would be 4" shorter, so 9.5" or 241mm ish.
That said the spacing doesn't really look right to me. It could be that there is a 4th hole hidden under the slider (so 11.5" or 292ish mm overall height) or the spacing of the bottom bar could be different
The top of the ladder part are more rounded than normal so it could be a completely home made/modified? The hole spacings would still be the same though otherwise a different slider would be needed.

Hope that helps.