1 piece of GRZ101S 360° Prism
· Held by two Metal Pieces
· One with a 1/4inch female thread
· One with a 1/4inch male thread
· 8' round bubble level

4*30cm Aluminiun alloy rods
· These rods can be applied to both GRZ101 & GMP111 system

A hook-end for replacement
· Atteach it to the rods so the prism can be
hung from top surface