Key Features:<br> Creating Ideal Chairs: With its assistance, you can easily adjust the chair height to an ideal position, thereby better assisting your work and your guests.<br> Adjustable Height: This is a 4-bolt pump with a height adjustable range of 4.3 inches. You can install it on a chair and adjust it to the appropriate height as needed, which is very practical.<br> Selected Materials: The pump body is made of cast iron, combined with a spray-painted plastic casing, you don't have to worry about it deforming during use, resulting in a longer service life.<br> High Bearing: It can withstand a weight of 440 pounds, letting you rest assured to place a chair on it, and also make people sit at ease.<br> Ergonomic Design: Its design conforms to ergonomics, so you only need to step on the lever to raise or lower the chair without bending over.<br> Easy to Install: You only need to install the lever and plastic cover, and then install the entire lifting pump on the chair you want to lift.<br> Details:<br> Curved Lever: The front end of the lever is curved, making it easier for your feet to step on while maintaining an appropriate angle.<br> Round Corners: It is designed with rounded corners all around, avoiding unnecessary scratches.<br> Application:<br> This chair hydraulic pump is suitable as a replacement part for most standard-style chairs with four-hole and diagonal hole spacing of 4.53in bases in bars, beauty salon, hair salons, and other places.<br> Specifications:<br> Model: YL700<br> Material: Cast Iron, Plastic<br> Color: Silvery<br> Style: Modern<br> Thread: M8<br> Surface Treatment: Painting<br> Assembly Required: Yes<br> Adjustable Range: 11cm/4.3in<br> Maximum Load Capacity: 200kg/440lbs<br> Suitable Base Diagonal Hole Spacing: 115mm/4.53in<br> Gross Weight: 8.05kg/17.74lbs<br> Net Weight: 7.15kg/15.76lbs<br> Shaft Diameter: 26mm/1in<br> Base Diameter: 89mm/3.5in<br> Base Height: 57mm/2.24in<br> Lever Length: 28.5cm/11.22in<br> Product Height: 37cm/14.56in<br> Package Size: 41.5*37*19.5cm/16.33*14.56*7.67in<br> Package Included:<br> 1*Chair Hydraulic Pump<br> All Accessories for Assembly<br> Notes:<br> 1.Please note this package only contains the chair hydraulic pump, please prepare other components yourself.<br> 2.It is recommended to clean with a dry tissue. Please be careful not to use detergent to wipe the surface of the product to avoid damage.<br> Please allow the slight color difference caused by the shooting light and 1-3cm error due to manual measurement, and make sure you do not mind before you order.