Adjustable spacer

Adjustable spacer for laying flexible double tracks ensuring correct way. Especially useful when used in conjunction with track clamps. Instruction is enclosed.
Gauge H0 -  can be adjusted from 40 mm to 64.6 mm.
Gauge TT / H0m - can be adjusted from 32 mm to 60 mm.
Gauge N / H0e - can be adjusted from 25 mm to 35 mm.
Gauge Z/ H0f / TTe - can be adjusted from 19 mm to 25 mm.