... Products NameGas spring/gas lift/gas cylinder/gas strutUseUsed for boss chair/ office chair/bar chair etc.QualityNANT Gas Spring have ... by high quality and good service. 5 year warranty for the goods.TypeBoss chair: 60mm, 80mmOffice Chair: 100mm, 120mm, 140mm, ... 160mmBar Chair: 180mm, 200mm, 260mm, 330mmSampleAll the samples are free, just freight will be undertaken by your ...