How to choose the size?. 6.5 "stroke lift cylinder is a common size for most chairs and stools. Model: bar stool gas lift cylinder. Part Number: bar stool gas lift cylinder. Study & Heavy Duty: Certified by SGS test (USA) & Higher Standard LGA test (GER), use of high quality materials and thickened outer steel, this gas lift cylinder is of really high quality and durability, weight capacity: 450 lbs.
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