KeyFeaturesAdjustable Height:This is a 4-bolt pattern pump, which has an adjustable height range of 11cm/ 4.3". You can install it on the chair to adjust it to the right height for your needs, which is very practical.High Load-bearing Capacity:It can withstand 440 pounds of weight, so you don't have to worry that it will break easily because of the weight-bearing problem.Wide Application:It is suitable as a replacement part for most standard stylingchairs.ApplicationThis barberchair hydraulic pump is suitable as a replacement part for most standard stylingchairs in bars, restaurants, hairdressers and other places.How to Confirm Whether It Matches Your Seat Needs to Pay attention to the Following Four Aspects.1.Upper interface requirements: Top thread of spindle: m8.2.Shaft Diameter: 26mm.3.Cone Ratio of shaft: 1:13.4.Requirements for base connection: 4 holes and the diagonal spacing of holes is 115mm. And please bring four M6 nuts.SpecificationModel: YL700Name: Barber Chair Hydraulic PumpPump Body Material: Cast Iron Pump Casing Material: PlasticSurface Treatment: PaintingColor: SilverWeighr Capacity: 200kg/440 poundsThread: M8Height: 38cm / 15.0inHeight After Stretching: 49cm / 19.3inAdjustable Height: 11cm / 4.3inConnecting Shaft Diameter: 2.6cm/ 1.02inHole Distance Between the Pump and the Base: 11.5cm/ 4.53inPackageIncluded1*Barber Chair Hydraulic PumpNotes1.The package does not contain the bottom disc and chair, so if you need it, please prepare it in advance.