are mainly divided into standard series and advanced series. The standard and advanced series are semi-autoclaves and advanced plus series are fully autoclaves. Each series includes single channel adjustable volume, single-channel fixed volume, 8 channel adjustable volume and 12 channel adjustable volume. Hawach pipettes are ergonomic, with greater precision and repeatability. Pipette stands are a device for hanging a pipette on it. Our pipettes include linear stand and round stand, and each of them can hang six pipettes but with different prices.