Reduced weight, ergonomic design and smooth pushing system to minimize hand and finger tiredness. Minimum bodyheat transfer to internal parts for high accuracy even during continuous use. Autoclavable tip cone. Tip ejection mechanism (except in EASD-10K-001). Accurate volume adjustment with an audible “click” signal to avoid mistakes. Each micropipette was individually calibrated according to EN-ISO 8655 standard, showing an embossed identifying serial number and delivered with a calibration report. See the spare parts available for these micropipettes on our website: www.labbox.com. 3 year warranty