An extremely sturdy design built accordingly by us. The tripod base, hand made using 18 mm pipe, connects to a 22 mm screw fitting allowing for a wobble free seat height adjustment. the screw fitting we have engineered in Poland. The polished seat is a piece of history, hand crafted from 120 yr old maple floor boards. These boards were reclaimed from the now demolished Ogden Tobacco factory in Liverpool. The hard wood, originally brought from Canada, has gained a magnificent golden colour and patina through many years of tobacco staining. The wood is polished with natural beeswax. The metal is left raw and finished by hand with boiled linseed oil for a protected patina. If you plan to only buy one bar stool in your life, this is it!