Whether it can be raised or lowered: NoColor classification: 65 sitting high transparent smoke gray, 65 sitting high transparent color, 65 sitting high transparent noble red, 65 sitting high transparent amber brown, 65 sitting high transparent glass green, 75 sitting high transparent smoke gray, 75 sitting high transparent color, 75 sitting high transparent noble red, 75 sitting high transparent amber brown, 75 sitting high transparent glass green, 65 high transparent color, 75 high transparent color, 65 high transparent brown delivery, 75 high transparent brownProduct material: pc materialThe product size is manually measured and there may be small errors, which is normal.Thank you for visiting us. If you have any questions, please feel free to contact us and we will get back to you as soon as possible. If you are not satisfied with this product, you can go to my shop, we have a variety of chairs for you to choose.