uxcell Cabinet Door Cupboard Pneumatic Support Hydraulic Gas Spring Lift Package Content: 1 x Cabinet Gas Lift, Some Mounted Part; Weight: 188g Product Name: Cabinet Gas Lift; Material: Zinc Alloy Main Color: Silver Tone; Fit Door Height: 20cm-50cm/7.9"-20" Open Length: 21cm/8.3"; Closed Length: 12.5cm/5" Mount Hole Dia: 5mm/0.2"; Hole Center Distance: 31mm/1.2"