Size 228 mm (9”), Internal focusing. The horizontal circle graduated to read 6 minutes with Vernier having provision to preset zero quickly for any desired horizontal direction. the lilting drum is provided with graduation to read 1:5000. All moveable parts. Including foot screws are made of gunmetal and brass , Steel axis, Erect Image, The instruments is supplied with all accessories and adjusting tools in F.R.P box and aluminum telescopic stand. Packed in water proof canvas cover.