Spacer: without

Opening width: 140 mm / 5.5"

Spacers: 0 + 1 (20 + 50 mm / 0.78 + 1.96")

Opening width: 210 mm / 8.26"

Spacers: 0 + 1 + 2 (20 + 50 + 100 mm / 0.78 + 1.96" + 3.93")

Opening width: 310 mm / 12.20"

Spacers: 0 + 1 + 3 (20 + 50 + 200 mm / 0.78 + 1.96" + 7.87")

Opening width: 410 mm / 16.14"

Spacers: 0 + 1 + 2 + 3 (20 + 50 + 100 + 200 mm / 0.78 + 1.96" + 3.93")

Opening width: 510 mm / 20.07"